13885307825 has 24 divisors (see below), whose sum is σ = 18157453920. Its totient is φ = 10504166400.

The previous prime is 13885307819. The next prime is 13885307837. The reversal of 13885307825 is 52870358831.

It is a de Polignac number, because none of the positive numbers 2^k-13885307825 is a prime.

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, 233105 + ... + 286545.

It is an arithmetic number, because the mean of its divisors is an integer number (756560580).

Almost surely, 2^13885307825 is an apocalyptic number.

It is an amenable number.

13885307825 is a deficient number, since it is larger than the sum of its proper divisors (4272146095).

13885307825 is a wasteful number, since it uses less digits than its factorization.

13885307825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54017 (or 54012 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 13885307825 in words is "thirteen billion, eight hundred eighty-five million, three hundred seven thousand, eight hundred twenty-five".