56440252 has 48 divisors (see below), whose sum is σ = 115137792. Its totient is φ = 23950080.

The previous prime is 56440247. The next prime is 56440261. The reversal of 56440252 is 25204465.

It is a self number, because there is not a number n which added to its sum of digits gives 56440252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42868 + ... + 44164.

It is an arithmetic number, because the mean of its divisors is an integer number (2398704).

Almost surely, 2^56440252 is an apocalyptic number.

It is an amenable number.

56440252 is an abundant number, since it is smaller than the sum of its proper divisors (58697540).

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

56440252 is a wasteful number, since it uses less digits than its factorization.

56440252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378 (or 1376 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 56440252 is about 7512.6727600768. The cubic root of 56440252 is about 383.5862060981.

The spelling of 56440252 in words is "fifty-six million, four hundred forty thousand, two hundred fifty-two".