56445444 has 48 divisors (see below), whose sum is σ = 159647040. Its totient is φ = 17104320.

The previous prime is 56445443. The next prime is 56445463. The reversal of 56445444 is 44454465.

56445444 is a `hidden beast` number, since 5 + 644 + 5 + 4 + 4 + 4 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 56445399 and 56445408.

It is not an unprimeable number, because it can be changed into a prime (56445443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22569 + ... + 24944.

It is an arithmetic number, because the mean of its divisors is an integer number (3325980).

Almost surely, 2^56445444 is an apocalyptic number.

56445444 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

56445444 is an abundant number, since it is smaller than the sum of its proper divisors (103201596).

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

56445444 is a wasteful number, since it uses less digits than its factorization.

56445444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47537 (or 47529 counting only the distinct ones).

The product of its digits is 153600, while the sum is 36.

The square root of 56445444 is about 7513.0183015883. The cubic root of 56445444 is about 383.5979679078.

The spelling of 56445444 in words is "fifty-six million, four hundred forty-five thousand, four hundred forty-four".