57115855 has 8 divisors (see below), whose sum is σ = 68615712. Its totient is φ = 45641568.

The previous prime is 57115813. The next prime is 57115859. The reversal of 57115855 is 55851175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57115855 - 2¹⁷ = 56984783 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 (57115859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072 + ... + 10741.

It is an arithmetic number, because the mean of its divisors is an integer number (8576964).

Almost surely, 2^57115855 is an apocalyptic number.

57115855 is a deficient number, since it is larger than the sum of its proper divisors (11499857).

57115855 is a wasteful number, since it uses less digits than its factorization.

57115855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12785.

The product of its digits is 35000, while the sum is 37.

The square root of 57115855 is about 7557.5032252722. The cubic root of 57115855 is about 385.1106782488.

It can be divided in two parts, 57115 and 855, that added together give a triangular number (57970 = T₃₄₀).

The spelling of 57115855 in words is "fifty-seven million, one hundred fifteen thousand, eight hundred fifty-five".