57115858 has 4 divisors (see below), whose sum is σ = 85673790. Its totient is φ = 28557928.

The previous prime is 57115813. The next prime is 57115859. The reversal of 57115858 is 85851175.

57115858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 55845729 + 1270129 = 7473^2 + 1127^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 57115858.

It is not an unprimeable number, because it can be changed into a prime (57115859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14278963 + ... + 14278966.

Almost surely, 2^57115858 is an apocalyptic number.

57115858 is a deficient number, since it is larger than the sum of its proper divisors (28557932).

57115858 is a wasteful number, since it uses less digits than its factorization.

57115858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28557931.

The product of its digits is 56000, while the sum is 40.

The square root of 57115858 is about 7557.5034237505. The cubic root of 57115858 is about 385.1106849914.

The spelling of 57115858 in words is "fifty-seven million, one hundred fifteen thousand, eight hundred fifty-eight".