18622325 has 6 divisors (see below), whose sum is σ = 23091714. Its totient is φ = 14897840.

The previous prime is 18622319. The next prime is 18622339. The reversal of 18622325 is 52322681.

It can be written as a sum of positive squares in 3 ways, for example, as 5827396 + 12794929 = 2414^2 + 3577^2 .

It is not a de Polignac number, because 18622325 - 2⁸ = 18622069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 372422 + ... + 372471.

It is an arithmetic number, because the mean of its divisors is an integer number (3848619).

Almost surely, 2^18622325 is an apocalyptic number.

It is an amenable number.

18622325 is a deficient number, since it is larger than the sum of its proper divisors (4469389).

18622325 is an equidigital number, since it uses as much as digits as its factorization.

18622325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744903 (or 744898 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 18622325 is about 4315.3591971005. The cubic root of 18622325 is about 265.0602687176.

The spelling of 18622325 in words is "eighteen million, six hundred twenty-two thousand, three hundred twenty-five".