The lucky Powerball winner who netted an eye-watering $2billion has hired round the clock security, costing him an estimated $21,000 a week. The 30-year-old Edwin Castro banked the biggest lottery prize in American history and went on a spending spree including buying a luxury $25million home in the Hollywood Hills. Although he own $2bn, after taxes he pocketed 'just' $997.6 million in February last year after opting for a one-time, lump-sum payment. He chose not to attend a press conference to announce his winnings as he wanted to keep under the radar. However, California state law requires lottery winners to disclose their full names. Wary after suddenly coming into such a huge sum of money, Mr Castro now lives with 24/7 security, the New York Post reports. He hired three guards, who work on a rotation to protect himself and his newfound wealth, the outlet reported. For all the latest news, politics, sports, and showbiz from the USA, go to The Mirror US Mr Castro's win was one of the biggest ever seen in the US ( Image: AFP via Getty Images) Edwin was previously spotted driving a vintage $250,000 Porsche after leaving a bank with an envelope which contained a wad of cash, so security might seem a good idea. As well as his Hollywood mansion, he has also splashed out on a new $4million home in his hometown of Altadena, which has five bedrooms, four bathrooms and over 4,361 square feet of living space. The price of security varies but according to security company Global Risk Solutions, Inc., it can cost $85 per hour to $125 an hour for one bodyguard, reports the New York Post. This would get a bodyguard with a military background or equivalent skills, according to the security company. To have a highly paid security guard working round the clock it would cost $21,000. 'I won the $1million Powerball and I didn’t buy a ticket - I just got a notification' California Lottery Director Alva Johnson announces Mr Castro's win ( Image: AP) Before his win, Mr Castro reportedly lived in a run-down Altadena home, which was opposite the petrol station where he purchased the life-changing ticket. Joe Chahayed, owner of Joe's Service Centre who sold him the lucky ticket, has also pocketed $1million before tax - but decided to give the winnings to his 11 grandchildren. The businessman was back at work the following day at 6am with Joe insisting it was the biggest ticket he's ever sold. He told The Sun: "We've had quite a few lottery winners at our stations, but this is the biggest on earth, no ticket is bigger than this." Follow the Mirror US News page on Facebook All the latest news, showbiz, lifestyle and sports updates, brought to you by our dedicated American team. Follow the Mirror US News page on Facebook to make sure you're not missing out. Despite the billionaire refusing to publicly discuss the winnings, a representative for him said: "As much as I am shocked and ecstatic to have won the Powerball drawing, the real winner is the California public school system. "The mission of the California Lottery, which is to provide supplemental funding for California public education, both public schools and colleges, makes this a huge win for the state. "As someone who received the rewards of being educated in the California public education system, it's gratifying to hear that as a result of my win, the California school system greatly benefits as well." California State Lottery Director Alva V. Johnson confirmed the Powerball win raised $156.3million for the public school system in the state.