5581444 has 12 divisors (see below), whose sum is σ = 10655568. Its totient is φ = 2537000.

The previous prime is 5581403. The next prime is 5581447. The reversal of 5581444 is 4441855.

It is not an unprimeable number, because it can be changed into a prime (5581447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63382 + ... + 63469.

It is an arithmetic number, because the mean of its divisors is an integer number (887964).

Almost surely, 2^5581444 is an apocalyptic number.

It is an amenable number.

5581444 is a deficient number, since it is larger than the sum of its proper divisors (5074124).

5581444 is a wasteful number, since it uses less digits than its factorization.

5581444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126866 (or 126864 counting only the distinct ones).

The product of its digits is 12800, while the sum is 31.

The square root of 5581444 is about 2362.5079894045. The cubic root of 5581444 is about 177.3844410830.

It can be divided in two parts, 558 and 1444, that added together give a palindrome (2002).

The spelling of 5581444 in words is "five million, five hundred eighty-one thousand, four hundred forty-four".