56904408 has 48 divisors (see below), whose sum is σ = 168129000. Its totient is φ = 17243520.

The previous prime is 56904403. The next prime is 56904413. The reversal of 56904408 is 80440965.

It is an interprime number because it is at equal distance from previous prime (56904403) and next prime (56904413).

It is a super-2 number, since 2×56904408² = 6476223299660928, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56904403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35133 + ... + 36716.

Almost surely, 2^56904408 is an apocalyptic number.

It is an amenable number.

56904408 is an abundant number, since it is smaller than the sum of its proper divisors (111224592).

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

56904408 is a wasteful number, since it uses less digits than its factorization.

56904408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71872 (or 71865 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 56904408 is about 7543.5010439450. The cubic root of 56904408 is about 384.6348547846.

The spelling of 56904408 in words is "fifty-six million, nine hundred four thousand, four hundred eight".