56445912 has 48 divisors (see below), whose sum is σ = 154103040. Its totient is φ = 18664128.

The previous prime is 56445871. The next prime is 56445937. The reversal of 56445912 is 21954465.

56445912 is a `hidden beast` number, since 5 + 64 + 4 + 591 + 2 = 666.

It is a super-2 number, since 2×56445912² = 6372281963023488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6058 + ... + 12230.

It is an arithmetic number, because the mean of its divisors is an integer number (3210480).

Almost surely, 2^56445912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56445912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77051520).

56445912 is an abundant number, since it is smaller than the sum of its proper divisors (97657128).

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

56445912 is a wasteful number, since it uses less digits than its factorization.

56445912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6312 (or 6305 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 56445912 is about 7513.0494474614. The cubic root of 56445912 is about 383.5990280663.

The spelling of 56445912 in words is "fifty-six million, four hundred forty-five thousand, nine hundred twelve".