57664625 has 8 divisors (see below), whose sum is σ = 71965608. Its totient is φ = 46131600.

The previous prime is 57664603. The next prime is 57664643. The reversal of 57664625 is 52646675.

It can be written as a sum of positive squares in 4 ways, for example, as 13162384 + 44502241 = 3628^2 + 6671^2 .

It is not a de Polignac number, because 57664625 - 2¹² = 57660529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230534 + ... + 230783.

It is an arithmetic number, because the mean of its divisors is an integer number (8995701).

Almost surely, 2^57664625 is an apocalyptic number.

It is an amenable number.

57664625 is a deficient number, since it is larger than the sum of its proper divisors (14300983).

57664625 is an equidigital number, since it uses as much as digits as its factorization.

57664625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461332 (or 461322 counting only the distinct ones).

The product of its digits is 302400, while the sum is 41.

The square root of 57664625 is about 7593.7227365766. The cubic root of 57664625 is about 386.3401321551.

The spelling of 57664625 in words is "fifty-seven million, six hundred sixty-four thousand, six hundred twenty-five".