13455225 has 36 divisors (see below), whose sum is σ = 27545856. Its totient is φ = 6150240.

The previous prime is 13455223. The next prime is 13455263. The reversal of 13455225 is 52255431.

It is a happy number.

13455225 is a `hidden beast` number, since 134 + 5 + 522 + 5 = 666.

It is not a de Polignac number, because 13455225 - 2¹ = 13455223 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13455223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2697 + ... + 5846.

Almost surely, 2^13455225 is an apocalyptic number.

13455225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13455225 is an abundant number, since it is smaller than the sum of its proper divisors (14090631).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13455225 is a wasteful number, since it uses less digits than its factorization.

13455225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8566 (or 8558 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 13455225 is about 3668.1364478438. The cubic root of 13455225 is about 237.8466222191.

The spelling of 13455225 in words is "thirteen million, four hundred fifty-five thousand, two hundred twenty-five".