56401173 has 12 divisors (see below), whose sum is σ = 81617068. Its totient is φ = 37532160.

The previous prime is 56401159. The next prime is 56401207. The reversal of 56401173 is 37110465.

56401173 is a `hidden beast` number, since 5 + 640 + 1 + 17 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 43996689 + 12404484 = 6633^2 + 3522^2 .

It is not a de Polignac number, because 56401173 - 2⁴ = 56401157 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 (56401123) 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, 238 + ... + 10623.

Almost surely, 2^56401173 is an apocalyptic number.

It is an amenable number.

56401173 is a deficient number, since it is larger than the sum of its proper divisors (25215895).

56401173 is a wasteful number, since it uses less digits than its factorization.

56401173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11444 (or 11441 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 56401173 is about 7510.0714377428. The cubic root of 56401173 is about 383.4976544831.

The spelling of 56401173 in words is "fifty-six million, four hundred one thousand, one hundred seventy-three".