503104805 has 18 divisors (see below), whose sum is σ = 702783666. Its totient is φ = 344745408.

The previous prime is 503104787. The next prime is 503104871. The reversal of 503104805 is 508401305.

It can be written as a sum of positive squares in 3 ways, for example, as 199543876 + 303560929 = 14126^2 + 17423^2 .

It is not a de Polignac number, because 503104805 - 2²⁶ = 435995941 is a prime.

It is a super-2 number, since 2×503104805² = 506228889628176050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 350369 + ... + 351801.

It is an arithmetic number, because the mean of its divisors is an integer number (39043537).

Almost surely, 2^503104805 is an apocalyptic number.

It is an amenable number.

503104805 is a deficient number, since it is larger than the sum of its proper divisors (199678861).

503104805 is an frugal number, since it uses more digits than its factorization.

503104805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 503104805 is about 22429.9978823004. The cubic root of 503104805 is about 795.3399940742.

The spelling of 503104805 in words is "five hundred three million, one hundred four thousand, eight hundred five".