57115889 has 4 divisors (see below), whose sum is σ = 57145200. Its totient is φ = 57086580.

The previous prime is 57115867. The next prime is 57115907. The reversal of 57115889 is 98851175.

It is a happy number.

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 57115889 - 2¹⁶ = 57050353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57115859) 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, 11507 + ... + 15704.

It is an arithmetic number, because the mean of its divisors is an integer number (14286300).

Almost surely, 2^57115889 is an apocalyptic number.

It is an amenable number.

57115889 is a deficient number, since it is larger than the sum of its proper divisors (29311).

57115889 is a wasteful number, since it uses less digits than its factorization.

57115889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29310.

The product of its digits is 100800, while the sum is 44.

The square root of 57115889 is about 7557.5054746920. The cubic root of 57115889 is about 385.1107546651.

The spelling of 57115889 in words is "fifty-seven million, one hundred fifteen thousand, eight hundred eighty-nine".