13900025 has 24 divisors (see below), whose sum is σ = 17998848. Its totient is φ = 10640000.

The previous prime is 13900013. The next prime is 13900043. The reversal of 13900025 is 52000931.

13900025 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 13900025 - 2¹⁰ = 13899001 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 72680 + ... + 72870.

It is an arithmetic number, because the mean of its divisors is an integer number (749952).

Almost surely, 2^13900025 is an apocalyptic number.

It is an amenable number.

13900025 is a deficient number, since it is larger than the sum of its proper divisors (4098823).

13900025 is a wasteful number, since it uses less digits than its factorization.

13900025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 13900025 is about 3728.2737292211. The cubic root of 13900025 is about 240.4391554277.

Adding to 13900025 its reverse (52000931), we get a palindrome (65900956).

The spelling of 13900025 in words is "thirteen million, nine hundred thousand, twenty-five".