56666698 has 16 divisors (see below), whose sum is σ = 95719680. Its totient is φ = 24926400.

The previous prime is 56666693. The next prime is 56666707. The reversal of 56666698 is 89666665.

It is a super-2 number, since 2×56666698² = 6422229324446408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56666693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40863 + ... + 42226.

It is an arithmetic number, because the mean of its divisors is an integer number (5982480).

Almost surely, 2^56666698 is an apocalyptic number.

56666698 is a deficient number, since it is larger than the sum of its proper divisors (39052982).

56666698 is a wasteful number, since it uses less digits than its factorization.

56666698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83133.

The product of its digits is 2799360, while the sum is 52.

The square root of 56666698 is about 7527.7286082855. The cubic root of 56666698 is about 384.0985216316.

The spelling of 56666698 in words is "fifty-six million, six hundred sixty-six thousand, six hundred ninety-eight".