18872325 has 48 divisors (see below), whose sum is σ = 35235840. Its totient is φ = 9901440.

The previous prime is 18872317. The next prime is 18872407. The reversal of 18872325 is 52327881.

It is not a de Polignac number, because 18872325 - 2³ = 18872317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18872325.

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 47 ways as a sum of consecutive naturals, for example, 49084 + ... + 49466.

It is an arithmetic number, because the mean of its divisors is an integer number (734080).

Almost surely, 2^18872325 is an apocalyptic number.

18872325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18872325 is a deficient number, since it is larger than the sum of its proper divisors (16363515).

18872325 is a wasteful number, since it uses less digits than its factorization.

18872325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 464 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 18872325 is about 4344.2289304317. The cubic root of 18872325 is about 266.2411224971.

The spelling of 18872325 in words is "eighteen million, eight hundred seventy-two thousand, three hundred twenty-five".