56966663 has 8 divisors (see below), whose sum is σ = 62126400. Its totient is φ = 51918048.

The previous prime is 56966659. The next prime is 56966669. The reversal of 56966663 is 36666965.

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

It is not a de Polignac number, because 56966663 - 2² = 56966659 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 (56966669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26708 + ... + 28761.

It is an arithmetic number, because the mean of its divisors is an integer number (7765800).

Almost surely, 2^56966663 is an apocalyptic number.

56966663 is a deficient number, since it is larger than the sum of its proper divisors (5159737).

56966663 is a wasteful number, since it uses less digits than its factorization.

56966663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55561.

The product of its digits is 1049760, while the sum is 47.

The square root of 56966663 is about 7547.6263156041. The cubic root of 56966663 is about 384.7750707286.

The spelling of 56966663 in words is "fifty-six million, nine hundred sixty-six thousand, six hundred sixty-three".