13224553 has 4 divisors (see below), whose sum is σ = 13293268. Its totient is φ = 13155840.

The previous prime is 13224539. The next prime is 13224559. The reversal of 13224553 is 35542231.

13224553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35542231 = 4751 ⋅7481.

It can be written as a sum of positive squares in 2 ways, for example, as 8952064 + 4272489 = 2992^2 + 2067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13224553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13224559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34068 + ... + 34453.

It is an arithmetic number, because the mean of its divisors is an integer number (3323317).

Almost surely, 2^13224553 is an apocalyptic number.

It is an amenable number.

13224553 is a deficient number, since it is larger than the sum of its proper divisors (68715).

13224553 is an equidigital number, since it uses as much as digits as its factorization.

13224553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68714.

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

The square root of 13224553 is about 3636.5578504954. The cubic root of 13224553 is about 236.4795918545.

Adding to 13224553 its reverse (35542231), we get a palindrome (48766784).

The spelling of 13224553 in words is "thirteen million, two hundred twenty-four thousand, five hundred fifty-three".