56388188 has 24 divisors (see below), whose sum is σ = 100791600. Its totient is φ = 27595008.

The previous prime is 56388187. The next prime is 56388221. The reversal of 56388188 is 88188365.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56388187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79178 + ... + 79886.

It is an arithmetic number, because the mean of its divisors is an integer number (4199650).

Almost surely, 2^56388188 is an apocalyptic number.

It is an amenable number.

56388188 is a deficient number, since it is larger than the sum of its proper divisors (44403412).

56388188 is a wasteful number, since it uses less digits than its factorization.

56388188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1107 counting only the distinct ones).

The product of its digits is 368640, while the sum is 47.

The square root of 56388188 is about 7509.2068822213. The cubic root of 56388188 is about 383.4682218846.

The spelling of 56388188 in words is "fifty-six million, three hundred eighty-eight thousand, one hundred eighty-eight".