57071957 has 4 divisors (see below), whose sum is σ = 57096576. Its totient is φ = 57047340.

The previous prime is 57071951. The next prime is 57071977. The reversal of 57071957 is 75917075.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57071957 - 2²² = 52877653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57071951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8423 + ... + 13604.

It is an arithmetic number, because the mean of its divisors is an integer number (14274144).

Almost surely, 2^57071957 is an apocalyptic number.

It is an amenable number.

57071957 is a deficient number, since it is larger than the sum of its proper divisors (24619).

57071957 is a wasteful number, since it uses less digits than its factorization.

57071957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24618.

The product of its (nonzero) digits is 77175, while the sum is 41.

The square root of 57071957 is about 7554.5984009741. The cubic root of 57071957 is about 385.0119904064.

It can be divided in two parts, 570 and 71957, that added together give a palindrome (72527).

The spelling of 57071957 in words is "fifty-seven million, seventy-one thousand, nine hundred fifty-seven".