57955666 has 8 divisors (see below), whose sum is σ = 87703164. Its totient is φ = 28721280.

The previous prime is 57955619. The next prime is 57955679. The reversal of 57955666 is 66655975.

It is a happy number.

57955666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40691641 + 17264025 = 6379^2 + 4155^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127995 + ... + 128446.

Almost surely, 2^57955666 is an apocalyptic number.

57955666 is a deficient number, since it is larger than the sum of its proper divisors (29747498).

57955666 is a wasteful number, since it uses less digits than its factorization.

57955666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256556.

The product of its digits is 1701000, while the sum is 49.

The square root of 57955666 is about 7612.8618797401. The cubic root of 57955666 is about 386.9890116553.

The spelling of 57955666 in words is "fifty-seven million, nine hundred fifty-five thousand, six hundred sixty-six".