5561944 has 8 divisors (see below), whose sum is σ = 10428660. Its totient is φ = 2780968.

The previous prime is 5561917. The next prime is 5561947. The reversal of 5561944 is 4491655.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347614 + ... + 347629.

Almost surely, 2^5561944 is an apocalyptic number.

It is an amenable number.

5561944 is a deficient number, since it is larger than the sum of its proper divisors (4866716).

5561944 is a wasteful number, since it uses less digits than its factorization.

5561944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695249 (or 695245 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The square root of 5561944 is about 2358.3774083043. The cubic root of 5561944 is about 177.1776228777.

It can be divided in two parts, 556 and 1944, that added together give a square (2500 = 50²).

The spelling of 5561944 in words is "five million, five hundred sixty-one thousand, nine hundred forty-four".