56333881 has 4 divisors (see below), whose sum is σ = 57105652. Its totient is φ = 55562112.

The previous prime is 56333867. The next prime is 56333887. The reversal of 56333881 is 18833365.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13875625 + 42458256 = 3725^2 + 6516^2 .

It is a cyclic number.

It is not a de Polignac number, because 56333881 - 2⁹ = 56333369 is a prime.

It is a super-2 number, since 2×56333881² = 6347012297044322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56333881.

It is not an unprimeable number, because it can be changed into a prime (56333887) 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, 385776 + ... + 385921.

It is an arithmetic number, because the mean of its divisors is an integer number (14276413).

Almost surely, 2^56333881 is an apocalyptic number.

It is an amenable number.

56333881 is a deficient number, since it is larger than the sum of its proper divisors (771771).

56333881 is an equidigital number, since it uses as much as digits as its factorization.

56333881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771770.

The product of its digits is 51840, while the sum is 37.

The square root of 56333881 is about 7505.5899834723. The cubic root of 56333881 is about 383.3450773130.

The spelling of 56333881 in words is "fifty-six million, three hundred thirty-three thousand, eight hundred eighty-one".