18725275 has 6 divisors (see below), whose sum is σ = 23219372. Its totient is φ = 14980200.

The previous prime is 18725269. The next prime is 18725281. The reversal of 18725275 is 57252781.

It is an interprime number because it is at equal distance from previous prime (18725269) and next prime (18725281).

It is not a de Polignac number, because 18725275 - 2¹⁵ = 18692507 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 374481 + ... + 374530.

Almost surely, 2^18725275 is an apocalyptic number.

18725275 is a deficient number, since it is larger than the sum of its proper divisors (4494097).

18725275 is an equidigital number, since it uses as much as digits as its factorization.

18725275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749021 (or 749016 counting only the distinct ones).

The product of its digits is 39200, while the sum is 37.

The square root of 18725275 is about 4327.2710800226. The cubic root of 18725275 is about 265.5478165598.

The spelling of 18725275 in words is "eighteen million, seven hundred twenty-five thousand, two hundred seventy-five".