56173073 has 4 divisors (see below), whose sum is σ = 61279728. Its totient is φ = 51066420.

The previous prime is 56173027. The next prime is 56173099. The reversal of 56173073 is 37037165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56173073 - 2¹⁴ = 56156689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56173373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2553311 + ... + 2553332.

It is an arithmetic number, because the mean of its divisors is an integer number (15319932).

Almost surely, 2^56173073 is an apocalyptic number.

It is an amenable number.

56173073 is a deficient number, since it is larger than the sum of its proper divisors (5106655).

56173073 is a wasteful number, since it uses less digits than its factorization.

56173073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106654.

The product of its (nonzero) digits is 13230, while the sum is 32.

The square root of 56173073 is about 7494.8697787220. The cubic root of 56173073 is about 382.9799701842.

The spelling of 56173073 in words is "fifty-six million, one hundred seventy-three thousand, seventy-three".