15994090925 has 12 divisors (see below), whose sum is σ = 20128684896. Its totient is φ = 12604297200.

The previous prime is 15994090897. The next prime is 15994090967. The reversal of 15994090925 is 52909049951.

It is a de Polignac number, because none of the positive numbers 2^k-15994090925 is a prime.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

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, 4772681 + ... + 4776030.

It is an arithmetic number, because the mean of its divisors is an integer number (1677390408).

Almost surely, 2^15994090925 is an apocalyptic number.

It is an amenable number.

15994090925 is a deficient number, since it is larger than the sum of its proper divisors (4134593971).

15994090925 is an equidigital number, since it uses as much as digits as its factorization.

15994090925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9548788 (or 9548783 counting only the distinct ones).

The product of its (nonzero) digits is 1312200, while the sum is 53.

The spelling of 15994090925 in words is "fifteen billion, nine hundred ninety-four million, ninety thousand, nine hundred twenty-five".