57489173361 has 15 divisors (see below), whose sum is σ = 85882112283. Its totient is φ = 38324676960.

The previous prime is 57489173327. The next prime is 57489173387. The reversal of 57489173361 is 16337198475.

The square root of 57489173361 is 239769.

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

57489173361 is a `hidden beast` number, since 574 + 8 + 9 + 1 + 7 + 3 + 3 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3572333361 + 53916840000 = 59769^2 + 232200^2 .

It is not a de Polignac number, because 57489173361 - 2¹⁵ = 57489140593 is a prime.

It is a super-2 number, since 2×57489173361² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57489173298 and 57489173307.

It is not an unprimeable number, because it can be changed into a prime (57489173311) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2144601 + ... + 2171241.

Almost surely, 2^57489173361 is an apocalyptic number.

57489173361 is the 239769-th square number.

57489173361 is the 119885-th centered octagonal number.

It is an amenable number.

57489173361 is a deficient number, since it is larger than the sum of its proper divisors (28392938922).

57489173361 is an frugal number, since it uses more digits than its factorization.

57489173361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53294 (or 26644 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The spelling of 57489173361 in words is "fifty-seven billion, four hundred eighty-nine million, one hundred seventy-three thousand, three hundred sixty-one".