57057812017 has 2 divisors, whose sum is σ = 57057812018. Its totient is φ = 57057812016.

The previous prime is 57057811963. The next prime is 57057812039. The reversal of 57057812017 is 71021875075.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38871671281 + 18186140736 = 197159^2 + 134856^2 .

It is a cyclic number.

It is not a de Polignac number, because 57057812017 - 2¹¹ = 57057809969 is a prime.

It is not a weakly prime, because it can be changed into another prime (57051812017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28528906008 + 28528906009.

It is an arithmetic number, because the mean of its divisors is an integer number (28528906009).

Almost surely, 2^57057812017 is an apocalyptic number.

It is an amenable number.

57057812017 is a deficient number, since it is larger than the sum of its proper divisors (1).

57057812017 is an equidigital number, since it uses as much as digits as its factorization.

57057812017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 137200, while the sum is 43.

The spelling of 57057812017 in words is "fifty-seven billion, fifty-seven million, eight hundred twelve thousand, seventeen".