13155025 has 24 divisors (see below), whose sum is σ = 18608184. Its totient is φ = 9139200.

The previous prime is 13155013. The next prime is 13155031. The reversal of 13155025 is 52055131.

13155025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 8832784 + 4322241 = 2972^2 + 2079^2 .

It is not a de Polignac number, because 13155025 - 2⁹ = 13154513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13154987 and 13155005.

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, 4335 + ... + 6715.

It is an arithmetic number, because the mean of its divisors is an integer number (775341).

Almost surely, 2^13155025 is an apocalyptic number.

It is an amenable number.

13155025 is a deficient number, since it is larger than the sum of its proper divisors (5453159).

13155025 is a wasteful number, since it uses less digits than its factorization.

13155025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421 (or 2416 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 13155025 is about 3626.9856630541. The cubic root of 13155025 is about 236.0644334743.

The spelling of 13155025 in words is "thirteen million, one hundred fifty-five thousand, twenty-five".