56909944 has 32 divisors (see below), whose sum is σ = 131332320. Its totient is φ = 22513536.

The previous prime is 56909933. The next prime is 56909947. The reversal of 56909944 is 44990965.

It is a junction number, because it is equal to n+sod(n) for n = 56909894 and 56909903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56909947) 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 7 ways as a sum of consecutive naturals, for example, 38359 + ... + 39814.

It is an arithmetic number, because the mean of its divisors is an integer number (4104135).

Almost surely, 2^56909944 is an apocalyptic number.

It is an amenable number.

56909944 is an abundant number, since it is smaller than the sum of its proper divisors (74422376).

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

56909944 is a wasteful number, since it uses less digits than its factorization.

56909944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78199 (or 78195 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 56909944 is about 7543.8679733940. The cubic root of 56909944 is about 384.6473275706.

The spelling of 56909944 in words is "fifty-six million, nine hundred nine thousand, nine hundred forty-four".