57085722 has 20 divisors (see below), whose sum is σ = 127914666. Its totient is φ = 19028520.

The previous prime is 57085703. The next prime is 57085723. The reversal of 57085722 is 22758075.

57085722 is a `hidden beast` number, since 570 + 85 + 7 + 2 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 57017601 + 68121 = 7551^2 + 261^2 .

It is a super-2 number, since 2×57085722² = 6517559312522568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (57085723) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 176029 + ... + 176352.

Almost surely, 2^57085722 is an apocalyptic number.

57085722 is an abundant number, since it is smaller than the sum of its proper divisors (70828944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57085722 is a wasteful number, since it uses less digits than its factorization.

57085722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352395 (or 352386 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 57085722 is about 7555.5093805779. The cubic root of 57085722 is about 385.0429411821.

The spelling of 57085722 in words is "fifty-seven million, eighty-five thousand, seven hundred twenty-two".