56138970 has 32 divisors (see below), whose sum is σ = 134965440. Its totient is φ = 14944640.

The previous prime is 56138917. The next prime is 56138987. The reversal of 56138970 is 7983165.

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, 21601 + ... + 24059.

It is an arithmetic number, because the mean of its divisors is an integer number (4217670).

Almost surely, 2^56138970 is an apocalyptic number.

56138970 is an abundant number, since it is smaller than the sum of its proper divisors (78826470).

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

56138970 is a wasteful number, since it uses less digits than its factorization.

56138970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 56138970 is about 7492.5943437504. The cubic root of 56138970 is about 382.9024513707.

The spelling of 56138970 in words is "fifty-six million, one hundred thirty-eight thousand, nine hundred seventy".