18525275 has 6 divisors (see below), whose sum is σ = 22971372. Its totient is φ = 14820200.

The previous prime is 18525239. The next prime is 18525293. The reversal of 18525275 is 57252581.

It is not a de Polignac number, because 18525275 - 2¹² = 18521179 is a prime.

It is a Duffinian 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, 370481 + ... + 370530.

It is an arithmetic number, because the mean of its divisors is an integer number (3828562).

Almost surely, 2^18525275 is an apocalyptic number.

18525275 is a deficient number, since it is larger than the sum of its proper divisors (4446097).

18525275 is an equidigital number, since it uses as much as digits as its factorization.

18525275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741021 (or 741016 counting only the distinct ones).

The product of its digits is 28000, while the sum is 35.

The square root of 18525275 is about 4304.0997897354. The cubic root of 18525275 is about 264.5990138198.

The spelling of 18525275 in words is "eighteen million, five hundred twenty-five thousand, two hundred seventy-five".