13309925 has 12 divisors (see below), whose sum is σ = 16561440. Its totient is φ = 10611120.

The previous prime is 13309913. The next prime is 13309949. The reversal of 13309925 is 52990331.

13309925 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-13309925 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13309891 and 13309900.

It is a congruent 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, 8234 + ... + 9716.

It is an arithmetic number, because the mean of its divisors is an integer number (1380120).

Almost surely, 2^13309925 is an apocalyptic number.

It is an amenable number.

13309925 is a deficient number, since it is larger than the sum of its proper divisors (3251515).

13309925 is a wasteful number, since it uses less digits than its factorization.

13309925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852 (or 1847 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 13309925 is about 3648.2769905806. The cubic root of 13309925 is about 236.9873707715.

The spelling of 13309925 in words is "thirteen million, three hundred nine thousand, nine hundred twenty-five".