18889125 has 32 divisors (see below), whose sum is σ = 33291648. Its totient is φ = 9478400.

The previous prime is 18889099. The next prime is 18889133. The reversal of 18889125 is 52198881.

It is not a de Polignac number, because 18889125 - 2¹⁷ = 18758053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4894 + ... + 7856.

It is an arithmetic number, because the mean of its divisors is an integer number (1040364).

Almost surely, 2^18889125 is an apocalyptic number.

18889125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18889125 is a deficient number, since it is larger than the sum of its proper divisors (14402523).

18889125 is a wasteful number, since it uses less digits than its factorization.

18889125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998 (or 2988 counting only the distinct ones).

The product of its digits is 46080, while the sum is 42.

The square root of 18889125 is about 4346.1621000602. The cubic root of 18889125 is about 266.3201010063.

The spelling of 18889125 in words is "eighteen million, eight hundred eighty-nine thousand, one hundred twenty-five".