57503702857 has 2 divisors, whose sum is σ = 57503702858. Its totient is φ = 57503702856.

The previous prime is 57503702843. The next prime is 57503702953. The reversal of 57503702857 is 75820730575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55248972601 + 2254730256 = 235051^2 + 47484^2 .

It is a cyclic number.

It is not a de Polignac number, because 57503702857 - 2¹⁹ = 57503178569 is a prime.

It is a super-2 number, since 2×57503702857² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57503702857.

It is not a weakly prime, because it can be changed into another prime (57503702827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28751851428 + 28751851429.

It is an arithmetic number, because the mean of its divisors is an integer number (28751851429).

Almost surely, 2^57503702857 is an apocalyptic number.

It is an amenable number.

57503702857 is a deficient number, since it is larger than the sum of its proper divisors (1).

57503702857 is an equidigital number, since it uses as much as digits as its factorization.

57503702857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2058000, while the sum is 49.

The spelling of 57503702857 in words is "fifty-seven billion, five hundred three million, seven hundred two thousand, eight hundred fifty-seven".