56512440 has 48 divisors (see below), whose sum is σ = 183666600. Its totient is φ = 15069888.

The previous prime is 56512427. The next prime is 56512451. The reversal of 56512440 is 4421565.

56512440 is a `hidden beast` number, since 5 + 651 + 2 + 4 + 4 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78130 + ... + 78849.

Almost surely, 2^56512440 is an apocalyptic number.

It is an amenable number.

56512440 is an abundant number, since it is smaller than the sum of its proper divisors (127154160).

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

56512440 is a wasteful number, since it uses less digits than its factorization.

56512440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156996 (or 156989 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 56512440 is about 7517.4756401335. The cubic root of 56512440 is about 383.7496740900.

The spelling of 56512440 in words is "fifty-six million, five hundred twelve thousand, four hundred forty".