13875225 has 96 divisors (see below), whose sum is σ = 29998080. Its totient is φ = 5495040.

The previous prime is 13875217. The next prime is 13875269. The reversal of 13875225 is 52257831.

13875225 is digitally balanced in base 2 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 13875225 - 2³ = 13875217 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 129622 + ... + 129728.

It is an arithmetic number, because the mean of its divisors is an integer number (312480).

Almost surely, 2^13875225 is an apocalyptic number.

13875225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13875225 is an abundant number, since it is smaller than the sum of its proper divisors (16122855).

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

13875225 is a wasteful number, since it uses less digits than its factorization.

13875225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 154 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 13875225 is about 3724.9463083379. The cubic root of 13875225 is about 240.2960755689.

The spelling of 13875225 in words is "thirteen million, eight hundred seventy-five thousand, two hundred twenty-five".