56936857 has 6 divisors (see below), whose sum is σ = 57288938. Its totient is φ = 56586912.

The previous prime is 56936849. The next prime is 56936879. The reversal of 56936857 is 75863965.

56936857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 48734361 + 8202496 = 6981^2 + 2864^2 .

It is not a de Polignac number, because 56936857 - 2³ = 56936849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56936857.

It is not an unprimeable number, because it can be changed into a prime (56936807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31153 + ... + 32929.

Almost surely, 2^56936857 is an apocalyptic number.

It is an amenable number.

56936857 is a deficient number, since it is larger than the sum of its proper divisors (352081).

56936857 is an equidigital number, since it uses as much as digits as its factorization.

56936857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135 (or 1956 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 49.

The square root of 56936857 is about 7545.6515291922. The cubic root of 56936857 is about 384.7079519032.

The spelling of 56936857 in words is "fifty-six million, nine hundred thirty-six thousand, eight hundred fifty-seven".