56717966 has 16 divisors (see below), whose sum is σ = 87723456. Its totient is φ = 27482976.

The previous prime is 56717917. The next prime is 56717981. The reversal of 56717966 is 66971765.

It is a happy number.

56717966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56717966.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19115 + ... + 21881.

It is an arithmetic number, because the mean of its divisors is an integer number (5482716).

Almost surely, 2^56717966 is an apocalyptic number.

56717966 is a deficient number, since it is larger than the sum of its proper divisors (31005490).

56717966 is a wasteful number, since it uses less digits than its factorization.

56717966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083.

The product of its digits is 476280, while the sum is 47.

The square root of 56717966 is about 7531.1331152755. The cubic root of 56717966 is about 384.2143217285.

The spelling of 56717966 in words is "fifty-six million, seven hundred seventeen thousand, nine hundred sixty-six".