56285857 has 2 divisors, whose sum is σ = 56285858. Its totient is φ = 56285856.

The previous prime is 56285819. The next prime is 56285881. The reversal of 56285857 is 75858265.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50253921 + 6031936 = 7089^2 + 2456^2 .

It is a cyclic number.

It is not a de Polignac number, because 56285857 - 2¹⁵ = 56253089 is a prime.

It is not a weakly prime, because it can be changed into another prime (56985857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28142928 + 28142929.

It is an arithmetic number, because the mean of its divisors is an integer number (28142929).

Almost surely, 2^56285857 is an apocalyptic number.

It is an amenable number.

56285857 is a deficient number, since it is larger than the sum of its proper divisors (1).

56285857 is an equidigital number, since it uses as much as digits as its factorization.

56285857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672000, while the sum is 46.

The square root of 56285857 is about 7502.3900858326. The cubic root of 56285857 is about 383.2361138880.

The spelling of 56285857 in words is "fifty-six million, two hundred eighty-five thousand, eight hundred fifty-seven".