18675225 has 48 divisors (see below), whose sum is σ = 34868800. Its totient is φ = 9797760.

The previous prime is 18675199. The next prime is 18675247. The reversal of 18675225 is 52257681.

It is a happy number.

It is not a de Polignac number, because 18675225 - 2¹¹ = 18673177 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18675225.

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 47 ways as a sum of consecutive naturals, for example, 49086 + ... + 49464.

Almost surely, 2^18675225 is an apocalyptic number.

18675225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18675225 is a deficient number, since it is larger than the sum of its proper divisors (16193575).

18675225 is a wasteful number, since it uses less digits than its factorization.

18675225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 460 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 18675225 is about 4321.4841200680. The cubic root of 18675225 is about 265.3110149251.

The spelling of 18675225 in words is "eighteen million, six hundred seventy-five thousand, two hundred twenty-five".