“Mathematicians have devised a simple formula linking your social security number’s first digit and your age, and the startling connection holds only for this year. The Social Security Administration has not commented on what looks to be yet another path to identity theft.
Check it out yourself by doing the following elementary calculations. a.) What is the first digit of your social security number. b.) Multiply this number by 2. c.) Add 5. d.) Multiply it by 50. e.) If you have already had your birthday this year add 1759, and if you haven’t, add 1758. f.) Now subtract the four-digit year that you were born.” (source)
You should now have a three-digit number. The first digit is the same as the first digit of your social security number. The next two digits are your age this year.
Before you get too excited, read the explanation here.