56387966 has 8 divisors (see below), whose sum is σ = 85071384. Its totient is φ = 28030840.

The previous prime is 56387957. The next prime is 56387971. The reversal of 56387966 is 66978365.

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

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 3 ways as a sum of consecutive naturals, for example, 81140 + ... + 81831.

It is an arithmetic number, because the mean of its divisors is an integer number (10633923).

Almost surely, 2^56387966 is an apocalyptic number.

56387966 is a deficient number, since it is larger than the sum of its proper divisors (28683418).

56387966 is a wasteful number, since it uses less digits than its factorization.

56387966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163146.

The product of its digits is 1632960, while the sum is 50.

The square root of 56387966 is about 7509.1921003527. The cubic root of 56387966 is about 383.4677186465.

The spelling of 56387966 in words is "fifty-six million, three hundred eighty-seven thousand, nine hundred sixty-six".