56055973 has 4 divisors (see below), whose sum is σ = 56072908. Its totient is φ = 56039040.

The previous prime is 56055971. The next prime is 56056001. The reversal of 56055973 is 37955065.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23600164 + 32455809 = 4858^2 + 5697^2 .

It is a cyclic number.

It is not a de Polignac number, because 56055973 - 2¹ = 56055971 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 (56055971) 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, 1698 + ... + 10723.

It is an arithmetic number, because the mean of its divisors is an integer number (14018227).

Almost surely, 2^56055973 is an apocalyptic number.

It is an amenable number.

56055973 is a deficient number, since it is larger than the sum of its proper divisors (16935).

56055973 is a wasteful number, since it uses less digits than its factorization.

56055973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16934.

The product of its (nonzero) digits is 141750, while the sum is 40.

The square root of 56055973 is about 7487.0536928755. The cubic root of 56055973 is about 382.7136613679.

The spelling of 56055973 in words is "fifty-six million, fifty-five thousand, nine hundred seventy-three".