57855085 has 4 divisors (see below), whose sum is σ = 69426108. Its totient is φ = 46284064.

The previous prime is 57855079. The next prime is 57855089. The reversal of 57855085 is 58055875.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37234404 + 20620681 = 6102^2 + 4541^2 .

It is a cyclic number.

It is not a de Polignac number, because 57855085 - 2⁵ = 57855053 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 (57855089) 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, 5785504 + ... + 5785513.

It is an arithmetic number, because the mean of its divisors is an integer number (17356527).

Almost surely, 2^57855085 is an apocalyptic number.

It is an amenable number.

57855085 is a deficient number, since it is larger than the sum of its proper divisors (11571023).

57855085 is a wasteful number, since it uses less digits than its factorization.

57855085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11571022.

The product of its (nonzero) digits is 280000, while the sum is 43.

The square root of 57855085 is about 7606.2530197200. The cubic root of 57855085 is about 386.7650112348.

The spelling of 57855085 in words is "fifty-seven million, eight hundred fifty-five thousand, eighty-five".