57564454517 has 2 divisors, whose sum is σ = 57564454518. Its totient is φ = 57564454516.

The previous prime is 57564454471. The next prime is 57564454547. The reversal of 57564454517 is 71545446575.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30663862321 + 26900592196 = 175111^2 + 164014^2 .

It is a cyclic number.

It is not a de Polignac number, because 57564454517 - 2¹⁰ = 57564453493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57564454547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28782227258 + 28782227259.

It is an arithmetic number, because the mean of its divisors is an integer number (28782227259).

Almost surely, 2^57564454517 is an apocalyptic number.

It is an amenable number.

57564454517 is a deficient number, since it is larger than the sum of its proper divisors (1).

57564454517 is an equidigital number, since it uses as much as digits as its factorization.

57564454517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760000, while the sum is 53.

The spelling of 57564454517 in words is "fifty-seven billion, five hundred sixty-four million, four hundred fifty-four thousand, five hundred seventeen".