5509944 has 80 divisors (see below), whose sum is σ = 16857720. Its totient is φ = 1667520.

The previous prime is 5509939. The next prime is 5509979. The reversal of 5509944 is 4499055.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5509899 and 5509908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6742 + ... + 7514.

Almost surely, 2^5509944 is an apocalyptic number.

5509944 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5509944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8428860).

5509944 is an abundant number, since it is smaller than the sum of its proper divisors (11347776).

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

5509944 is a wasteful number, since it uses less digits than its factorization.

5509944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 5509944 is about 2347.3269904298. The cubic root of 5509944 is about 176.6237338814.

The spelling of 5509944 in words is "five million, five hundred nine thousand, nine hundred forty-four".