18859125 has 16 divisors (see below), whose sum is σ = 31382208. Its totient is φ = 10058000.

The previous prime is 18859123. The next prime is 18859147. The reversal of 18859125 is 52195881.

It is not a de Polignac number, because 18859125 - 2¹ = 18859123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18859121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24771 + ... + 25520.

It is an arithmetic number, because the mean of its divisors is an integer number (1961388).

Almost surely, 2^18859125 is an apocalyptic number.

18859125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18859125 is a deficient number, since it is larger than the sum of its proper divisors (12523083).

18859125 is an equidigital number, since it uses as much as digits as its factorization.

18859125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50309 (or 50299 counting only the distinct ones).

The product of its digits is 28800, while the sum is 39.

The square root of 18859125 is about 4342.7094077315. The cubic root of 18859125 is about 266.1790350666.

The spelling of 18859125 in words is "eighteen million, eight hundred fifty-nine thousand, one hundred twenty-five".