57252771691 has 16 divisors (see below), whose sum is σ = 58594314240. Its totient is φ = 55929407040.

The previous prime is 57252771679. The next prime is 57252771739. The reversal of 57252771691 is 19617725275.

It is a cyclic number.

It is not a de Polignac number, because 57252771691 - 2²⁹ = 56715900779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57252771601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3314046 + ... + 3331276.

It is an arithmetic number, because the mean of its divisors is an integer number (3662144640).

Almost surely, 2^57252771691 is an apocalyptic number.

57252771691 is a deficient number, since it is larger than the sum of its proper divisors (1341542549).

57252771691 is a wasteful number, since it uses less digits than its factorization.

57252771691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17754.

The product of its digits is 1852200, while the sum is 52.

The spelling of 57252771691 in words is "fifty-seven billion, two hundred fifty-two million, seven hundred seventy-one thousand, six hundred ninety-one".