56573158 has 4 divisors (see below), whose sum is σ = 84859740. Its totient is φ = 28286578.

The previous prime is 56573137. The next prime is 56573177. The reversal of 56573158 is 85137565.

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

It is a self number, because there is not a number n which added to its sum of digits gives 56573158.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14143288 + ... + 14143291.

It is an arithmetic number, because the mean of its divisors is an integer number (21214935).

Almost surely, 2^56573158 is an apocalyptic number.

56573158 is a deficient number, since it is larger than the sum of its proper divisors (28286582).

56573158 is a wasteful number, since it uses less digits than its factorization.

56573158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28286581.

The product of its digits is 126000, while the sum is 40.

The square root of 56573158 is about 7521.5130126857. The cubic root of 56573158 is about 383.8870607896.

The spelling of 56573158 in words is "fifty-six million, five hundred seventy-three thousand, one hundred fifty-eight".