56662971 has 8 divisors (see below), whose sum is σ = 75586560. Its totient is φ = 37757352.

The previous prime is 56662939. The next prime is 56662981. The reversal of 56662971 is 17926665.

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

It is not a de Polignac number, because 56662971 - 2⁵ = 56662939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56662981) 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, 7266 + ... + 12888.

It is an arithmetic number, because the mean of its divisors is an integer number (9448320).

Almost surely, 2^56662971 is an apocalyptic number.

56662971 is a deficient number, since it is larger than the sum of its proper divisors (18923589).

56662971 is a wasteful number, since it uses less digits than its factorization.

56662971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8985.

The product of its digits is 136080, while the sum is 42.

The square root of 56662971 is about 7527.4810527825. The cubic root of 56662971 is about 384.0901006564.

The spelling of 56662971 in words is "fifty-six million, six hundred sixty-two thousand, nine hundred seventy-one".