57297518161 has 9 divisors (see below), whose sum is σ = 62047427889. Its totient is φ = 52887144336.

The previous prime is 57297518153. The next prime is 57297518183. The reversal of 57297518161 is 16181579275.

The square root of 57297518161 is 239369.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 20325919761 + 36971598400 = 142569^2 + 192280^2 .

It is not a de Polignac number, because 57297518161 - 2³ = 57297518153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57297518099 and 57297518108.

It is not an unprimeable number, because it can be changed into a prime (57297518141) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3102591 + ... + 3121003.

Almost surely, 2^57297518161 is an apocalyptic number.

57297518161 is the 239369-th square number.

57297518161 is the 119685-th centered octagonal number.

It is an amenable number.

57297518161 is a deficient number, since it is larger than the sum of its proper divisors (4749909728).

57297518161 is an frugal number, since it uses more digits than its factorization.

57297518161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36852 (or 18426 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 52.

The spelling of 57297518161 in words is "fifty-seven billion, two hundred ninety-seven million, five hundred eighteen thousand, one hundred sixty-one".