56172706 has 32 divisors (see below), whose sum is σ = 89812800. Its totient is φ = 26315520.

The previous prime is 56172703. The next prime is 56172719. The reversal of 56172706 is 60727165.

It is not an unprimeable number, because it can be changed into a prime (56172703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313725 + ... + 313903.

It is an arithmetic number, because the mean of its divisors is an integer number (2806650).

Almost surely, 2^56172706 is an apocalyptic number.

56172706 is a deficient number, since it is larger than the sum of its proper divisors (33640094).

56172706 is a wasteful number, since it uses less digits than its factorization.

56172706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 56172706 is about 7494.8452952679. The cubic root of 56172706 is about 382.9791361312.

The spelling of 56172706 in words is "fifty-six million, one hundred seventy-two thousand, seven hundred six".