56444289 has 16 divisors (see below), whose sum is σ = 82330560. Its totient is φ = 34112960.

The previous prime is 56444287. The next prime is 56444293. The reversal of 56444289 is 98244465.

It is a cyclic number.

It is not a de Polignac number, because 56444289 - 2¹ = 56444287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56444289.

It is not an unprimeable number, because it can be changed into a prime (56444281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10639 + ... + 15035.

It is an arithmetic number, because the mean of its divisors is an integer number (5145660).

Almost surely, 2^56444289 is an apocalyptic number.

It is an amenable number.

56444289 is a deficient number, since it is larger than the sum of its proper divisors (25886271).

56444289 is a wasteful number, since it uses less digits than its factorization.

56444289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4800.

The product of its digits is 276480, while the sum is 42.

The square root of 56444289 is about 7512.9414346180. The cubic root of 56444289 is about 383.5953514659.

The spelling of 56444289 in words is "fifty-six million, four hundred forty-four thousand, two hundred eighty-nine".