56013988 has 12 divisors (see below), whose sum is σ = 98141680. Its totient is φ = 27973512.

The previous prime is 56013977. The next prime is 56014001. The reversal of 56013988 is 88931065.

It is a happy number.

56013988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56013988.

It is an unprimeable number.

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, 4398 + ... + 11461.

Almost surely, 2^56013988 is an apocalyptic number.

It is an amenable number.

56013988 is a deficient number, since it is larger than the sum of its proper divisors (42127692).

56013988 is a wasteful number, since it uses less digits than its factorization.

56013988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16746 (or 16744 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 56013988 is about 7484.2493277549. The cubic root of 56013988 is about 382.6180887613.

The spelling of 56013988 in words is "fifty-six million, thirteen thousand, nine hundred eighty-eight".