13655225 has 12 divisors (see below), whose sum is σ = 17100096. Its totient is φ = 10816080.

The previous prime is 13655207. The next prime is 13655231. The reversal of 13655225 is 52255631.

It is a happy number.

13655225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13655225 - 2¹⁶ = 13589689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77 + ... + 5226.

It is an arithmetic number, because the mean of its divisors is an integer number (1425008).

Almost surely, 2^13655225 is an apocalyptic number.

It is an amenable number.

13655225 is a deficient number, since it is larger than the sum of its proper divisors (3444871).

13655225 is a wasteful number, since it uses less digits than its factorization.

13655225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416 (or 5411 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 13655225 is about 3695.2976876024. The cubic root of 13655225 is about 239.0192908222.

The spelling of 13655225 in words is "thirteen million, six hundred fifty-five thousand, two hundred twenty-five".