56868133 has 4 divisors (see below), whose sum is σ = 64992160. Its totient is φ = 48744108.

The previous prime is 56868127. The next prime is 56868137. The reversal of 56868133 is 33186865.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33186865 = 5 ⋅6637373.

It is a de Polignac number, because none of the positive numbers 2^k-56868133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56868137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4062003 + ... + 4062016.

It is an arithmetic number, because the mean of its divisors is an integer number (16248040).

Almost surely, 2^56868133 is an apocalyptic number.

It is an amenable number.

56868133 is a deficient number, since it is larger than the sum of its proper divisors (8124027).

56868133 is an equidigital number, since it uses as much as digits as its factorization.

56868133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8124026.

The product of its digits is 103680, while the sum is 40.

The square root of 56868133 is about 7541.0962730892. The cubic root of 56868133 is about 384.5531060197.

The spelling of 56868133 in words is "fifty-six million, eight hundred sixty-eight thousand, one hundred thirty-three".