56616966 has 48 divisors (see below), whose sum is σ = 140613408. Its totient is φ = 16128000.

The previous prime is 56616929. The next prime is 56616983. The reversal of 56616966 is 66961665.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80416 + ... + 81116.

It is an arithmetic number, because the mean of its divisors is an integer number (2929446).

Almost surely, 2^56616966 is an apocalyptic number.

56616966 is an abundant number, since it is smaller than the sum of its proper divisors (83996442).

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

56616966 is a wasteful number, since it uses less digits than its factorization.

56616966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357 (or 1354 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 56616966 is about 7524.4246291660. The cubic root of 56616966 is about 383.9861241731.

The spelling of 56616966 in words is "fifty-six million, six hundred sixteen thousand, nine hundred sixty-six".