56188040 has 32 divisors (see below), whose sum is σ = 129510360. Its totient is φ = 21926400.

The previous prime is 56188031. The next prime is 56188079. The reversal of 56188040 is 4088165.

It can be written as a sum of positive squares in 4 ways, for example, as 48246916 + 7941124 = 6946^2 + 2818^2 .

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 56187988 and 56188006.

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, 15491 + ... + 18770.

Almost surely, 2^56188040 is an apocalyptic number.

It is an amenable number.

56188040 is an abundant number, since it is smaller than the sum of its proper divisors (73322320).

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

56188040 is a wasteful number, since it uses less digits than its factorization.

56188040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34313 (or 34309 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 56188040 is about 7495.8681952126. The cubic root of 56188040 is about 383.0139814514.

The spelling of 56188040 in words is "fifty-six million, one hundred eighty-eight thousand, forty".