18325925 has 18 divisors (see below), whose sum is σ = 23220054. Its totient is φ = 14347200.

The previous prime is 18325891. The next prime is 18325933. The reversal of 18325925 is 52952381.

18325925 = T₈₆ + T₈₇ + ... + T₄₇₉.

It can be written as a sum of positive squares in 9 ways, for example, as 9746884 + 8579041 = 3122^2 + 2929^2 .

It is not a de Polignac number, because 18325925 - 2⁸ = 18325669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 92927 + ... + 93123.

It is an arithmetic number, because the mean of its divisors is an integer number (1290003).

Almost surely, 2^18325925 is an apocalyptic number.

It is an amenable number.

18325925 is a deficient number, since it is larger than the sum of its proper divisors (4894129).

18325925 is an equidigital number, since it uses as much as digits as its factorization.

18325925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 263 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 18325925 is about 4280.8789985236. The cubic root of 18325925 is about 263.6464744978.

The spelling of 18325925 in words is "eighteen million, three hundred twenty-five thousand, nine hundred twenty-five".