13890025 has 12 divisors (see below), whose sum is σ = 17397324. Its totient is φ = 11000000.

The previous prime is 13890013. The next prime is 13890029. The reversal of 13890025 is 52009831.

13890025 is digitally balanced in base 3, 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 6 ways, for example, as 2920681 + 10969344 = 1709^2 + 3312^2 .

It is not a de Polignac number, because 13890025 - 2¹¹ = 13887977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13889975 and 13890002.

It is not an unprimeable number, because it can be changed into a prime (13890029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226 + ... + 5275.

It is an arithmetic number, because the mean of its divisors is an integer number (1449777).

Almost surely, 2^13890025 is an apocalyptic number.

It is an amenable number.

13890025 is a deficient number, since it is larger than the sum of its proper divisors (3507299).

13890025 is a wasteful number, since it uses less digits than its factorization.

13890025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612 (or 5607 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 13890025 is about 3726.9323846831. The cubic root of 13890025 is about 240.3814824289.

Adding to 13890025 its reverse (52009831), we get a palindrome (65899856).

The spelling of 13890025 in words is "thirteen million, eight hundred ninety thousand, twenty-five".