18325 has 6 divisors (see below), whose sum is σ = 22754. Its totient is φ = 14640.

The previous prime is 18313. The next prime is 18329. The reversal of 18325 is 52381.

It is a happy number.

18325 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 3 ways, for example, as 5329 + 12996 = 73^2 + 114^2 .

It is not a de Polignac number, because 18325 - 2¹³ = 10133 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 342 + ... + 391.

2¹⁸³²⁵ is an apocalyptic number.

It is an amenable number.

18325 is a deficient number, since it is larger than the sum of its proper divisors (4429).

18325 is an equidigital number, since it uses as much as digits as its factorization.

18325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743 (or 738 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 18325 is about 135.3698637068. The cubic root of 18325 is about 26.3642038576.

It can be divided in two parts, 18 and 325, that added together give a palindrome (343).

The spelling of 18325 in words is "eighteen thousand, three hundred twenty-five".