56366681 has 8 divisors (see below), whose sum is σ = 64479360. Its totient is φ = 48269088.

The previous prime is 56366671. The next prime is 56366693. The reversal of 56366681 is 18666365.

56366681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 56366681 - 2⁶ = 56366617 is a prime.

It is a super-2 number, since 2×56366681² = 6354405453911522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56366621) by changing a digit.

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, 5900 + ... + 12146.

It is an arithmetic number, because the mean of its divisors is an integer number (8059920).

Almost surely, 2^56366681 is an apocalyptic number.

It is an amenable number.

56366681 is a deficient number, since it is larger than the sum of its proper divisors (8112679).

56366681 is a wasteful number, since it uses less digits than its factorization.

56366681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7543.

The product of its digits is 155520, while the sum is 41.

The square root of 56366681 is about 7507.7747035989. The cubic root of 56366681 is about 383.4194628561.

The spelling of 56366681 in words is "fifty-six million, three hundred sixty-six thousand, six hundred eighty-one".