18225325 has 12 divisors (see below), whose sum is σ = 22655668. Its totient is φ = 14544000.

The previous prime is 18225323. The next prime is 18225329. The reversal of 18225325 is 52352281.

It can be written as a sum of positive squares in 6 ways, for example, as 1077444 + 17147881 = 1038^2 + 4141^2 .

It is not a de Polignac number, because 18225325 - 2¹ = 18225323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18225293 and 18225302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18225323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14419 + ... + 15631.

Almost surely, 2^18225325 is an apocalyptic number.

It is an amenable number.

18225325 is a deficient number, since it is larger than the sum of its proper divisors (4430343).

18225325 is a wasteful number, since it uses less digits than its factorization.

18225325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824 (or 1819 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 18225325 is about 4269.1129055109. The cubic root of 18225325 is about 263.1631607192.

The spelling of 18225325 in words is "eighteen million, two hundred twenty-five thousand, three hundred twenty-five".