13222425 has 12 divisors (see below), whose sum is σ = 21861200. Its totient is φ = 7051920.

The previous prime is 13222411. The next prime is 13222427. The reversal of 13222425 is 52422231.

It is not a de Polignac number, because 13222425 - 2⁸ = 13222169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13222427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88075 + ... + 88224.

Almost surely, 2^13222425 is an apocalyptic number.

13222425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13222425 is a deficient number, since it is larger than the sum of its proper divisors (8638775).

13222425 is a wasteful number, since it uses less digits than its factorization.

13222425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176312 (or 176307 counting only the distinct ones).

The product of its digits is 960, while the sum is 21.

The square root of 13222425 is about 3636.2652543510. The cubic root of 13222425 is about 236.4669069754.

Adding to 13222425 its reverse (52422231), we get a palindrome (65644656).

The spelling of 13222425 in words is "thirteen million, two hundred twenty-two thousand, four hundred twenty-five".