56044639 has 8 divisors (see below), whose sum is σ = 64639520. Its totient is φ = 47596896.

The previous prime is 56044627. The next prime is 56044643. The reversal of 56044639 is 93644065.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56044639 - 2²³ = 47656031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56044598 and 56044607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56044679) 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, 35964 + ... + 37489.

It is an arithmetic number, because the mean of its divisors is an integer number (8079940).

Almost surely, 2^56044639 is an apocalyptic number.

56044639 is a deficient number, since it is larger than the sum of its proper divisors (8594881).

56044639 is a wasteful number, since it uses less digits than its factorization.

56044639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73569.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 56044639 is about 7486.2967480591. The cubic root of 56044639 is about 382.6878659068.

The spelling of 56044639 in words is "fifty-six million, forty-four thousand, six hundred thirty-nine".