13553224 has 16 divisors (see below), whose sum is σ = 25829820. Its totient is φ = 6665280.

The previous prime is 13553209. The next prime is 13553257. The reversal of 13553224 is 42235531.

13553224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12830724 + 722500 = 3582^2 + 850^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13399 + ... + 14374.

Almost surely, 2^13553224 is an apocalyptic number.

It is an amenable number.

13553224 is a deficient number, since it is larger than the sum of its proper divisors (12276596).

13553224 is a wasteful number, since it uses less digits than its factorization.

13553224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27840 (or 27836 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 13553224 is about 3681.4703584302. The cubic root of 13553224 is about 238.4226653676.

Adding to 13553224 its reverse (42235531), we get a palindrome (55788755).

It can be divided in two parts, 1 and 3553224, that added together give a square (3553225 = 1885²).

The spelling of 13553224 in words is "thirteen million, five hundred fifty-three thousand, two hundred twenty-four".