57663366 has 16 divisors (see below), whose sum is σ = 121396800. Its totient is φ = 18209448.

The previous prime is 57663329. The next prime is 57663373. The reversal of 57663366 is 66336675.

It is a happy number.

It is a congruent 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, 252796 + ... + 253023.

It is an arithmetic number, because the mean of its divisors is an integer number (7587300).

Almost surely, 2^57663366 is an apocalyptic number.

57663366 is an abundant number, since it is smaller than the sum of its proper divisors (63733434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57663366 is a wasteful number, since it uses less digits than its factorization.

57663366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505843.

The product of its digits is 408240, while the sum is 42.

The square root of 57663366 is about 7593.6398387071. The cubic root of 57663366 is about 386.3373204616.

The spelling of 57663366 in words is "fifty-seven million, six hundred sixty-three thousand, three hundred sixty-six".