13317225 has 24 divisors (see below), whose sum is σ = 22617600. Its totient is φ = 6909120.

The previous prime is 13317217. The next prime is 13317277. The reversal of 13317225 is 52271331.

13317225 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13317225 - 2³ = 13317217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13317195 and 13317204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 376 + ... + 5174.

It is an arithmetic number, because the mean of its divisors is an integer number (942400).

Almost surely, 2^13317225 is an apocalyptic number.

13317225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13317225 is a deficient number, since it is larger than the sum of its proper divisors (9300375).

13317225 is a wasteful number, since it uses less digits than its factorization.

13317225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4849 (or 4844 counting only the distinct ones).

The product of its digits is 1260, while the sum is 24.

The square root of 13317225 is about 3649.2773257181. The cubic root of 13317225 is about 237.0306891128.

Adding to 13317225 its reverse (52271331), we get a palindrome (65588556).

The spelling of 13317225 in words is "thirteen million, three hundred seventeen thousand, two hundred twenty-five".