503404056 has 24 divisors (see below), whose sum is σ = 1363386180. Its totient is φ = 167801328.

The previous prime is 503404043. The next prime is 503404061. The reversal of 503404056 is 650404305.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×503404056² = 506831287194502272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3495790 + ... + 3495933.

Almost surely, 2^503404056 is an apocalyptic number.

It is an amenable number.

503404056 is an abundant number, since it is smaller than the sum of its proper divisors (859982124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

503404056 is a wasteful number, since it uses less digits than its factorization.

503404056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6991735 (or 6991728 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 503404056 is about 22436.6676670133. The cubic root of 503404056 is about 795.4976544745.

The spelling of 503404056 in words is "five hundred three million, four hundred four thousand, fifty-six".