56621504 has 28 divisors (see below), whose sum is σ = 112855248. Its totient is φ = 28185600.

The previous prime is 56621491. The next prime is 56621557. The reversal of 56621504 is 40512665.

It is a congruent number.

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, 13589 + ... + 17259.

Almost surely, 2^56621504 is an apocalyptic number.

It is an amenable number.

56621504 is a deficient number, since it is larger than the sum of its proper divisors (56233744).

56621504 is a wasteful number, since it uses less digits than its factorization.

56621504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3924 (or 3914 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 56621504 is about 7524.7261744199. The cubic root of 56621504 is about 383.9963830678.

The spelling of 56621504 in words is "fifty-six million, six hundred twenty-one thousand, five hundred four".