57505527517 has 2 divisors, whose sum is σ = 57505527518. Its totient is φ = 57505527516.

The previous prime is 57505527491. The next prime is 57505527553. The reversal of 57505527517 is 71572550575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48256666276 + 9248861241 = 219674^2 + 96171^2 .

It is a cyclic number.

It is not a de Polignac number, because 57505527517 - 2¹⁵ = 57505494749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57505527577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28752763758 + 28752763759.

It is an arithmetic number, because the mean of its divisors is an integer number (28752763759).

Almost surely, 2^57505527517 is an apocalyptic number.

It is an amenable number.

57505527517 is a deficient number, since it is larger than the sum of its proper divisors (1).

57505527517 is an equidigital number, since it uses as much as digits as its factorization.

57505527517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2143750, while the sum is 49.

The spelling of 57505527517 in words is "fifty-seven billion, five hundred five million, five hundred twenty-seven thousand, five hundred seventeen".