57085851 has 4 divisors (see below), whose sum is σ = 76114472. Its totient is φ = 38057232.

The previous prime is 57085841. The next prime is 57085859. The reversal of 57085851 is 15858075.

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

It is not a de Polignac number, because 57085851 - 2⁷ = 57085723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57085859) 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, 9514306 + ... + 9514311.

It is an arithmetic number, because the mean of its divisors is an integer number (19028618).

Almost surely, 2^57085851 is an apocalyptic number.

57085851 is a deficient number, since it is larger than the sum of its proper divisors (19028621).

57085851 is a wasteful number, since it uses less digits than its factorization.

57085851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19028620.

The product of its (nonzero) digits is 56000, while the sum is 39.

The square root of 57085851 is about 7555.5179173899. The cubic root of 57085851 is about 385.0432312167.

The spelling of 57085851 in words is "fifty-seven million, eighty-five thousand, eight hundred fifty-one".