56502857 has 2 divisors, whose sum is σ = 56502858. Its totient is φ = 56502856.

The previous prime is 56502851. The next prime is 56502869. The reversal of 56502857 is 75820565.

56502857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32844361 + 23658496 = 5731^2 + 4864^2 .

It is a cyclic number.

It is not a de Polignac number, because 56502857 - 2⁶ = 56502793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56502857.

It is not a weakly prime, because it can be changed into another prime (56502851) 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 as a sum of consecutive naturals, namely, 28251428 + 28251429.

It is an arithmetic number, because the mean of its divisors is an integer number (28251429).

Almost surely, 2^56502857 is an apocalyptic number.

It is an amenable number.

56502857 is a deficient number, since it is larger than the sum of its proper divisors (1).

56502857 is an equidigital number, since it uses as much as digits as its factorization.

56502857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 56502857 is about 7516.8382315971. The cubic root of 56502857 is about 383.7279816330.

The spelling of 56502857 in words is "fifty-six million, five hundred two thousand, eight hundred fifty-seven".