503309164 has 12 divisors (see below), whose sum is σ = 927148600. Its totient is φ = 238409568.

The previous prime is 503309137. The next prime is 503309179. The reversal of 503309164 is 461903305.

It is a super-2 number, since 2×503309164² = 506640229132757792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3311169 + ... + 3311320.

Almost surely, 2^503309164 is an apocalyptic number.

It is an amenable number.

503309164 is a deficient number, since it is larger than the sum of its proper divisors (423839436).

503309164 is a wasteful number, since it uses less digits than its factorization.

503309164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6622512 (or 6622510 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 503309164 is about 22434.5529039471. The cubic root of 503309164 is about 795.4476673875.

The spelling of 503309164 in words is "five hundred three million, three hundred nine thousand, one hundred sixty-four".