13906525 has 6 divisors (see below), whose sum is σ = 17244122. Its totient is φ = 11125200.

The previous prime is 13906523. The next prime is 13906531. The reversal of 13906525 is 52560931.

13906525 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 3 ways, for example, as 45796 + 13860729 = 214^2 + 3723^2 .

It is not a de Polignac number, because 13906525 - 2¹ = 13906523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13906523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278106 + ... + 278155.

Almost surely, 2^13906525 is an apocalyptic number.

It is an amenable number.

13906525 is a deficient number, since it is larger than the sum of its proper divisors (3337597).

13906525 is an equidigital number, since it uses as much as digits as its factorization.

13906525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556271 (or 556266 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 13906525 is about 3729.1453444456. The cubic root of 13906525 is about 240.4766280453.

The spelling of 13906525 in words is "thirteen million, nine hundred six thousand, five hundred twenty-five".