5509644 has 48 divisors (see below), whose sum is σ = 14853888. Its totient is φ = 1556928.

The previous prime is 5509643. The next prime is 5509657. The reversal of 5509644 is 4469055.

It is not an unprimeable number, because it can be changed into a prime (5509643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8682 + ... + 9294.

It is an arithmetic number, because the mean of its divisors is an integer number (309456).

Almost surely, 2^5509644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5509644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7426944).

5509644 is an abundant number, since it is smaller than the sum of its proper divisors (9344244).

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

5509644 is a wasteful number, since it uses less digits than its factorization.

5509644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 5509644 is about 2347.2630870867. The cubic root of 5509644 is about 176.6205282782.

The spelling of 5509644 in words is "five million, five hundred nine thousand, six hundred forty-four".