57365038217 has 2 divisors, whose sum is σ = 57365038218. Its totient is φ = 57365038216.

The previous prime is 57365038177. The next prime is 57365038261. The reversal of 57365038217 is 71283056375.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39541720201 + 17823318016 = 198851^2 + 133504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57365038217 is a prime.

It is not a weakly prime, because it can be changed into another prime (57365038517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28682519108 + 28682519109.

It is an arithmetic number, because the mean of its divisors is an integer number (28682519109).

Almost surely, 2^57365038217 is an apocalyptic number.

It is an amenable number.

57365038217 is a deficient number, since it is larger than the sum of its proper divisors (1).

57365038217 is an equidigital number, since it uses as much as digits as its factorization.

57365038217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 57365038217 in words is "fifty-seven billion, three hundred sixty-five million, thirty-eight thousand, two hundred seventeen".