57164445231 has 4 divisors (see below), whose sum is σ = 76219260312. Its totient is φ = 38109630152.

The previous prime is 57164445223. The next prime is 57164445251. The reversal of 57164445231 is 13254446175.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57164445231 - 2³ = 57164445223 is a prime.

It is a super-2 number, since 2×57164445231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57164445211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9527407536 + ... + 9527407541.

It is an arithmetic number, because the mean of its divisors is an integer number (19054815078).

Almost surely, 2^57164445231 is an apocalyptic number.

57164445231 is a deficient number, since it is larger than the sum of its proper divisors (19054815081).

57164445231 is a wasteful number, since it uses less digits than its factorization.

57164445231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19054815080.

The product of its digits is 403200, while the sum is 42.

The spelling of 57164445231 in words is "fifty-seven billion, one hundred sixty-four million, four hundred forty-five thousand, two hundred thirty-one".