57668663 has 4 divisors (see below), whose sum is σ = 62104728. Its totient is φ = 53232600.

The previous prime is 57668651. The next prime is 57668713. The reversal of 57668663 is 36686675.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57668663 - 2⁸ = 57668407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57668623) 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, 2218013 + ... + 2218038.

It is an arithmetic number, because the mean of its divisors is an integer number (15526182).

Almost surely, 2^57668663 is an apocalyptic number.

57668663 is a deficient number, since it is larger than the sum of its proper divisors (4436065).

57668663 is a wasteful number, since it uses less digits than its factorization.

57668663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4436064.

The product of its digits is 1088640, while the sum is 47.

The square root of 57668663 is about 7593.9886094200. The cubic root of 57668663 is about 386.3491498446.

The spelling of 57668663 in words is "fifty-seven million, six hundred sixty-eight thousand, six hundred sixty-three".