16393925025 has 36 divisors (see below), whose sum is σ = 29372342272. Its totient is φ = 8740746720.

The previous prime is 16393925017. The next prime is 16393925039. The reversal of 16393925025 is 52052939361.

16393925025 is a `hidden beast` number, since 1 + 6 + 393 + 9 + 250 + 2 + 5 = 666.

16393925025 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 16393925025 - 2³ = 16393925017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 883392 + ... + 901758.

Almost surely, 2^16393925025 is an apocalyptic number.

16393925025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16393925025 is a deficient number, since it is larger than the sum of its proper divisors (12978417247).

16393925025 is a wasteful number, since it uses less digits than its factorization.

16393925025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22350 (or 22342 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 45.

The spelling of 16393925025 in words is "sixteen billion, three hundred ninety-three million, nine hundred twenty-five thousand, twenty-five".