5521224 has 64 divisors (see below), whose sum is σ = 14676480. Its totient is φ = 1728000.

The previous prime is 5521213. The next prime is 5521249. The reversal of 5521224 is 4221255.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 5521224.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30414 + ... + 30594.

It is an arithmetic number, because the mean of its divisors is an integer number (229320).

Almost surely, 2^5521224 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 5521224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7338240).

5521224 is an abundant number, since it is smaller than the sum of its proper divisors (9155256).

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

5521224 is a wasteful number, since it uses less digits than its factorization.

5521224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 258 counting only the distinct ones).

The product of its digits is 800, while the sum is 21.

The square root of 5521224 is about 2349.7284949543. The cubic root of 5521224 is about 176.7441802175.

Adding to 5521224 its reverse (4221255), we get a palindrome (9742479).

The spelling of 5521224 in words is "five million, five hundred twenty-one thousand, two hundred twenty-four".