56942885 has 4 divisors (see below), whose sum is σ = 68331468. Its totient is φ = 45554304.

The previous prime is 56942881. The next prime is 56942927. The reversal of 56942885 is 58824965.

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 42797764 + 14145121 = 6542^2 + 3761^2 .

It is a cyclic number.

It is not a de Polignac number, because 56942885 - 2² = 56942881 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 (56942881) 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, 5694284 + ... + 5694293.

It is an arithmetic number, because the mean of its divisors is an integer number (17082867).

Almost surely, 2^56942885 is an apocalyptic number.

It is an amenable number.

56942885 is a deficient number, since it is larger than the sum of its proper divisors (11388583).

56942885 is a wasteful number, since it uses less digits than its factorization.

56942885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11388582.

The product of its digits is 691200, while the sum is 47.

The square root of 56942885 is about 7546.0509539759. The cubic root of 56942885 is about 384.7215279816.

The spelling of 56942885 in words is "fifty-six million, nine hundred forty-two thousand, eight hundred eighty-five".