57686225 has 6 divisors (see below), whose sum is σ = 71530950. Its totient is φ = 46148960.

The previous prime is 57686203. The next prime is 57686267. The reversal of 57686225 is 52268675.

It can be written as a sum of positive squares in 3 ways, for example, as 11282881 + 46403344 = 3359^2 + 6812^2 .

It is not a de Polignac number, because 57686225 - 2¹² = 57682129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1153700 + ... + 1153749.

It is an arithmetic number, because the mean of its divisors is an integer number (11921825).

Almost surely, 2^57686225 is an apocalyptic number.

It is an amenable number.

57686225 is a deficient number, since it is larger than the sum of its proper divisors (13844725).

57686225 is a wasteful number, since it uses less digits than its factorization.

57686225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307459 (or 2307454 counting only the distinct ones).

The product of its digits is 201600, while the sum is 41.

The square root of 57686225 is about 7595.1448307455. The cubic root of 57686225 is about 386.3883645282.

The spelling of 57686225 in words is "fifty-seven million, six hundred eighty-six thousand, two hundred twenty-five".