56563173 has 12 divisors (see below), whose sum is σ = 81860428. Its totient is φ = 37635840.

The previous prime is 56563153. The next prime is 56563181. The reversal of 56563173 is 37136565.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20958084 + 35605089 = 4578^2 + 5967^2 .

It is not a de Polignac number, because 56563173 - 2⁶ = 56563109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56563153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 940 + ... + 10677.

Almost surely, 2^56563173 is an apocalyptic number.

It is an amenable number.

56563173 is a deficient number, since it is larger than the sum of its proper divisors (25297255).

56563173 is a wasteful number, since it uses less digits than its factorization.

56563173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12164 (or 12161 counting only the distinct ones).

The product of its digits is 56700, while the sum is 36.

The square root of 56563173 is about 7520.8492206665. The cubic root of 56563173 is about 383.8644744726.

The spelling of 56563173 in words is "fifty-six million, five hundred sixty-three thousand, one hundred seventy-three".