56138188 has 12 divisors (see below), whose sum is σ = 98295400. Its totient is φ = 28053792.

The previous prime is 56138149. The next prime is 56138189. The reversal of 56138188 is 88183165.

56138188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 56138188.

It is not an unprimeable number, because it can be changed into a prime (56138189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9895 + ... + 14497.

Almost surely, 2^56138188 is an apocalyptic number.

It is an amenable number.

56138188 is a deficient number, since it is larger than the sum of its proper divisors (42157212).

56138188 is a wasteful number, since it uses less digits than its factorization.

56138188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7656 (or 7654 counting only the distinct ones).

The product of its digits is 46080, while the sum is 40.

The square root of 56138188 is about 7492.5421587069. The cubic root of 56138188 is about 382.9006734548.

The spelling of 56138188 in words is "fifty-six million, one hundred thirty-eight thousand, one hundred eighty-eight".