57025818 has 24 divisors (see below), whose sum is σ = 124095348. Its totient is φ = 18925632.

The previous prime is 57025807. The next prime is 57025819. The reversal of 57025818 is 81852075.

57025818 is a `hidden beast` number, since 5 + 70 + 2 + 581 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 48399849 + 8625969 = 6957^2 + 2937^2 .

It is not an unprimeable number, because it can be changed into a prime (57025819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2605 + ... + 10992.

Almost surely, 2^57025818 is an apocalyptic number.

57025818 is an abundant number, since it is smaller than the sum of its proper divisors (67069530).

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

57025818 is a wasteful number, since it uses less digits than its factorization.

57025818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13838 (or 13835 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 57025818 is about 7551.5440805176. The cubic root of 57025818 is about 384.9082099723.

The spelling of 57025818 in words is "fifty-seven million, twenty-five thousand, eight hundred eighteen".