56404056 has 32 divisors (see below), whose sum is σ = 142412400. Its totient is φ = 18614400.

The previous prime is 56404013. The next prime is 56404081. The reversal of 56404056 is 65040465.

It is a super-2 number, since 2×56404056² = 6362835066502272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9211 + ... + 14058.

Almost surely, 2^56404056 is an apocalyptic number.

It is an amenable number.

56404056 is an abundant number, since it is smaller than the sum of its proper divisors (86008344).

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

56404056 is a wasteful number, since it uses less digits than its factorization.

56404056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23379 (or 23375 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 56404056 is about 7510.2633775388. The cubic root of 56404056 is about 383.5041886552.

The spelling of 56404056 in words is "fifty-six million, four hundred four thousand, fifty-six".