13321225 has 6 divisors (see below), whose sum is σ = 16518350. Its totient is φ = 10656960.

The previous prime is 13321219. The next prime is 13321229. The reversal of 13321225 is 52212331.

13321225 is digitally balanced in base 3, 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 3 ways, for example, as 1617984 + 11703241 = 1272^2 + 3421^2 .

It is not a de Polignac number, because 13321225 - 2⁷ = 13321097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13321229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 266400 + ... + 266449.

Almost surely, 2^13321225 is an apocalyptic number.

It is an amenable number.

13321225 is a deficient number, since it is larger than the sum of its proper divisors (3197125).

13321225 is an equidigital number, since it uses as much as digits as its factorization.

13321225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532859 (or 532854 counting only the distinct ones).

The product of its digits is 360, while the sum is 19.

The square root of 13321225 is about 3649.8253382868. The cubic root of 13321225 is about 237.0544184770.

Adding to 13321225 its reverse (52212331), we get a palindrome (65533556).

The spelling of 13321225 in words is "thirteen million, three hundred twenty-one thousand, two hundred twenty-five".