502 = 2 x 251.
502 is a divisor of 525 - 1.
502 is an Eulerian number.
502 and its reversal (205) are both semiprimes (the product of two primes).
502 is a number such that the sum of its base 2 digits (1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 0 = 7) is equal to the sum of its base 10 digits (5 + 0 + 2 = 7).
Telephone area code 502 serves Louisville, Kentucky, and the surrounding area.
