56123312 has 40 divisors (see below), whose sum is σ = 129682176. Its totient is φ = 23006016.

The previous prime is 56123297. The next prime is 56123317. The reversal of 56123312 is 21332165.

It is a super-2 number, since 2×56123312² = 6299652299698688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (56123317) 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, 8318 + ... + 13469.

Almost surely, 2^56123312 is an apocalyptic number.

It is an amenable number.

56123312 is an abundant number, since it is smaller than the sum of its proper divisors (73558864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56123312 is a wasteful number, since it uses less digits than its factorization.

56123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21825 (or 21819 counting only the distinct ones).

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

The square root of 56123312 is about 7491.5493724596. The cubic root of 56123312 is about 382.8668489833.

Adding to 56123312 its reverse (21332165), we get a palindrome (77455477).

The spelling of 56123312 in words is "fifty-six million, one hundred twenty-three thousand, three hundred twelve".