56223131 has 8 divisors (see below), whose sum is σ = 59781744. Its totient is φ = 52692480.

The previous prime is 56223127. The next prime is 56223149. The reversal of 56223131 is 13132265.

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

It is a cyclic number.

It is not a de Polignac number, because 56223131 - 2² = 56223127 is a prime.

It is a super-2 number, since 2×56223131² = 6322080918886322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56223097 and 56223106.

It is not an unprimeable number, because it can be changed into a prime (56223161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2765 + ... + 10958.

It is an arithmetic number, because the mean of its divisors is an integer number (7472718).

Almost surely, 2^56223131 is an apocalyptic number.

56223131 is a deficient number, since it is larger than the sum of its proper divisors (3558613).

56223131 is a wasteful number, since it uses less digits than its factorization.

56223131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13981.

The product of its digits is 1080, while the sum is 23.

The square root of 56223131 is about 7498.2085193731. The cubic root of 56223131 is about 383.0936991674.

Adding to 56223131 its reverse (13132265), we get a palindrome (69355396).

The spelling of 56223131 in words is "fifty-six million, two hundred twenty-three thousand, one hundred thirty-one".