13605025 has 12 divisors (see below), whose sum is σ = 19280512. Its totient is φ = 9329040.

The previous prime is 13605019. The next prime is 13605077. The reversal of 13605025 is 52050631.

It is a happy number.

13605025 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 13605025 - 2⁷ = 13604897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13604987 and 13605005.

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, 38697 + ... + 39046.

Almost surely, 2^13605025 is an apocalyptic number.

It is an amenable number.

13605025 is a deficient number, since it is larger than the sum of its proper divisors (5675487).

13605025 is an equidigital number, since it uses as much as digits as its factorization.

13605025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77760 (or 77755 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13605025 is about 3688.4990172155. The cubic root of 13605025 is about 238.7260330647.

Adding to 13605025 its reverse (52050631), we get a palindrome (65655656).

The spelling of 13605025 in words is "thirteen million, six hundred five thousand, twenty-five".