57725521157165 has 16 divisors (see below), whose sum is σ = 71505860551680. Its totient is φ = 44690289269760.

The previous prime is 57725521157147. The next prime is 57725521157177. The reversal of 57725521157165 is 56175112552775.

It is a happy number.

It is not a de Polignac number, because 57725521157165 - 2¹⁶ = 57725521091629 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14564621 + ... + 18099149.

It is an arithmetic number, because the mean of its divisors is an integer number (4469116284480).

Almost surely, 2^{57725521157165} is an apocalyptic number.

It is an amenable number.

57725521157165 is a deficient number, since it is larger than the sum of its proper divisors (13780339394515).

57725521157165 is a wasteful number, since it uses less digits than its factorization.

57725521157165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639932.

The product of its digits is 25725000, while the sum is 59.

The spelling of 57725521157165 in words is "fifty-seven trillion, seven hundred twenty-five billion, five hundred twenty-one million, one hundred fifty-seven thousand, one hundred sixty-five".