56223081 has 12 divisors (see below), whose sum is σ = 81289780. Its totient is φ = 37445760.

The previous prime is 56223061. The next prime is 56223103. The reversal of 56223081 is 18032265.

56223081 is a `hidden beast` number, since 5 + 622 + 30 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24413481 + 31809600 = 4941^2 + 5640^2 .

It is not a de Polignac number, because 56223081 - 2⁵ = 56223049 is a prime.

It is a super-2 number, since 2×56223081² = 6322069674265122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56223001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9525 + ... + 14253.

Almost surely, 2^56223081 is an apocalyptic number.

It is an amenable number.

56223081 is a deficient number, since it is larger than the sum of its proper divisors (25066699).

56223081 is a wasteful number, since it uses less digits than its factorization.

56223081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6056 (or 6053 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 56223081 is about 7498.2051852427. The cubic root of 56223081 is about 383.0935856039.

The spelling of 56223081 in words is "fifty-six million, two hundred twenty-three thousand, eighty-one".