57649166 has 8 divisors (see below), whose sum is σ = 88313760. Its totient is φ = 28211248.

The previous prime is 57649153. The next prime is 57649169. The reversal of 57649166 is 66194675.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57649169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306551 + ... + 306738.

It is an arithmetic number, because the mean of its divisors is an integer number (11039220).

Almost surely, 2^57649166 is an apocalyptic number.

57649166 is a deficient number, since it is larger than the sum of its proper divisors (30664594).

57649166 is a wasteful number, since it uses less digits than its factorization.

57649166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613338.

The product of its digits is 272160, while the sum is 44.

The square root of 57649166 is about 7592.7047881503. The cubic root of 57649166 is about 386.3056051183.

The spelling of 57649166 in words is "fifty-seven million, six hundred forty-nine thousand, one hundred sixty-six".