56683668 has 24 divisors (see below), whose sum is σ = 132384672. Its totient is φ = 18877024.

The previous prime is 56683657. The next prime is 56683699. The reversal of 56683668 is 86638665.

It is a nialpdrome in base 13.

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, 21646 + ... + 24122.

It is an arithmetic number, because the mean of its divisors is an integer number (5516028).

Almost surely, 2^56683668 is an apocalyptic number.

It is an amenable number.

56683668 is an abundant number, since it is smaller than the sum of its proper divisors (75701004).

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

56683668 is a wasteful number, since it uses less digits than its factorization.

56683668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391 (or 4389 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The square root of 56683668 is about 7528.8556899439. The cubic root of 56683668 is about 384.1368598537.

The spelling of 56683668 in words is "fifty-six million, six hundred eighty-three thousand, six hundred sixty-eight".