56978432 has 44 divisors (see below), whose sum is σ = 130189200. Its totient is φ = 24416256.

The previous prime is 56978419. The next prime is 56978447. The reversal of 56978432 is 23487965.

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, 3194 + ... + 11142.

Almost surely, 2^56978432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56978432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65094600).

56978432 is an abundant number, since it is smaller than the sum of its proper divisors (73210768).

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

56978432 is an equidigital number, since it uses as much as digits as its factorization.

56978432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976 (or 7958 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 56978432 is about 7548.4059244320. The cubic root of 56978432 is about 384.8015663769.

The spelling of 56978432 in words is "fifty-six million, nine hundred seventy-eight thousand, four hundred thirty-two".