57031166725537 has 16 divisors (see below), whose sum is σ = 59399527001040. Its totient is φ = 54690242639872.

The previous prime is 57031166725531. The next prime is 57031166725619. The reversal of 57031166725537 is 73552766113075.

It can be written as a sum of positive squares in 8 ways, for example, as 27058213466001 + 29972953259536 = 5201751^2 + 5474756^2 .

It is a cyclic number.

It is not a de Polignac number, because 57031166725537 - 2³ = 57031166725529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57031166725531) 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, 915988 + ... + 10719205.

It is an arithmetic number, because the mean of its divisors is an integer number (3712470437565).

Almost surely, 2^{57031166725537} is an apocalyptic number.

It is an amenable number.

57031166725537 is a deficient number, since it is larger than the sum of its proper divisors (2368360275503).

57031166725537 is a wasteful number, since it uses less digits than its factorization.

57031166725537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11636372.

The product of its (nonzero) digits is 27783000, while the sum is 58.

The spelling of 57031166725537 in words is "fifty-seven trillion, thirty-one billion, one hundred sixty-six million, seven hundred twenty-five thousand, five hundred thirty-seven".