56451912 has 32 divisors (see below), whose sum is σ = 153960480. Its totient is φ = 17106560.

The previous prime is 56451911. The next prime is 56451929. The reversal of 56451912 is 21915465.

56451912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (56451911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106653 + ... + 107180.

It is an arithmetic number, because the mean of its divisors is an integer number (4811265).

Almost surely, 2^56451912 is an apocalyptic number.

It is an amenable number.

56451912 is an abundant number, since it is smaller than the sum of its proper divisors (97508568).

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

56451912 is a wasteful number, since it uses less digits than its factorization.

56451912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213853 (or 213849 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

The square root of 56451912 is about 7513.4487420891. The cubic root of 56451912 is about 383.6126193229.

It can be divided in two parts, 5645 and 1912, that added together give a palindrome (7557).

The spelling of 56451912 in words is "fifty-six million, four hundred fifty-one thousand, nine hundred twelve".