57664507 has 2 divisors, whose sum is σ = 57664508. Its totient is φ = 57664506.

The previous prime is 57664483. The next prime is 57664511. The reversal of 57664507 is 70546675.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57664507 - 2¹¹ = 57662459 is a prime.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 57664507.

It is not a weakly prime, because it can be changed into another prime (57664517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28832253 + 28832254.

It is an arithmetic number, because the mean of its divisors is an integer number (28832254).

Almost surely, 2^57664507 is an apocalyptic number.

57664507 is a deficient number, since it is larger than the sum of its proper divisors (1).

57664507 is an equidigital number, since it uses as much as digits as its factorization.

57664507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 57664507 is about 7593.7149669974. The cubic root of 57664507 is about 386.3398686304.

The spelling of 57664507 in words is "fifty-seven million, six hundred sixty-four thousand, five hundred seven".