57887131 has 4 divisors (see below), whose sum is σ = 58084992. Its totient is φ = 57689272.

The previous prime is 57887117. The next prime is 57887153. The reversal of 57887131 is 13178875.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57887131 is a prime.

It is a super-2 number, since 2×57887131² = 6701839870822322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57887111) 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, 98491 + ... + 99076.

It is an arithmetic number, because the mean of its divisors is an integer number (14521248).

Almost surely, 2^57887131 is an apocalyptic number.

57887131 is a deficient number, since it is larger than the sum of its proper divisors (197861).

57887131 is a wasteful number, since it uses less digits than its factorization.

57887131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197860.

The product of its digits is 47040, while the sum is 40.

The square root of 57887131 is about 7608.3592843661. The cubic root of 57887131 is about 386.8364079199.

The spelling of 57887131 in words is "fifty-seven million, eight hundred eighty-seven thousand, one hundred thirty-one".