55952857 has 2 divisors, whose sum is σ = 55952858. Its totient is φ = 55952856.

The previous prime is 55952833. The next prime is 55952863. The reversal of 55952857 is 75825955.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38887696 + 17065161 = 6236^2 + 4131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55952857 is a prime.

It is not a weakly prime, because it can be changed into another prime (55952657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27976428 + 27976429.

It is an arithmetic number, because the mean of its divisors is an integer number (27976429).

Almost surely, 2^55952857 is an apocalyptic number.

It is an amenable number.

55952857 is a deficient number, since it is larger than the sum of its proper divisors (1).

55952857 is an equidigital number, since it uses as much as digits as its factorization.

55952857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 630000, while the sum is 46.

The square root of 55952857 is about 7480.1642361649. The cubic root of 55952857 is about 382.4788477061.

The spelling of 55952857 in words is "fifty-five million, nine hundred fifty-two thousand, eight hundred fifty-seven".