57185321085 has 32 divisors (see below), whose sum is σ = 103180164480. Its totient is φ = 30043626624.

The previous prime is 57185320999. The next prime is 57185321093. The reversal of 57185321085 is 58012358175.

57185321085 is a `hidden beast` number, since 5 + 7 + 1 + 8 + 532 + 108 + 5 = 666.

It is not a de Polignac number, because 57185321085 - 2⁷ = 57185320957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 57185321085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3152112 + ... + 3170201.

It is an arithmetic number, because the mean of its divisors is an integer number (3224380140).

Almost surely, 2^57185321085 is an apocalyptic number.

It is an amenable number.

57185321085 is a deficient number, since it is larger than the sum of its proper divisors (45994843395).

57185321085 is a wasteful number, since it uses less digits than its factorization.

57185321085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6322394 (or 6322388 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 45.

The spelling of 57185321085 in words is "fifty-seven billion, one hundred eighty-five million, three hundred twenty-one thousand, eighty-five".