56152640 has 56 divisors (see below), whose sum is σ = 134355840. Its totient is φ = 22353408.

The previous prime is 56152631. The next prime is 56152661. The reversal of 56152640 is 4625165.

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, 121049 + ... + 121511.

Almost surely, 2^56152640 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 56152640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67177920).

56152640 is an abundant number, since it is smaller than the sum of its proper divisors (78203200).

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

56152640 is a wasteful number, since it uses less digits than its factorization.

56152640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 849 counting only the distinct ones).

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

The square root of 56152640 is about 7493.5065223165. The cubic root of 56152640 is about 382.9335281296.

The spelling of 56152640 in words is "fifty-six million, one hundred fifty-two thousand, six hundred forty".