18888125 has 20 divisors (see below), whose sum is σ = 24142272. Its totient is φ = 14766000.

The previous prime is 18888119. The next prime is 18888151. The reversal of 18888125 is 52188881.

It is not a de Polignac number, because 18888125 - 2¹² = 18884029 is a prime.

It is a super-2 number, since 2×18888125² = 713522532031250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29054 + ... + 29696.

Almost surely, 2^18888125 is an apocalyptic number.

It is an amenable number.

18888125 is a deficient number, since it is larger than the sum of its proper divisors (5254147).

18888125 is an frugal number, since it uses more digits than its factorization.

18888125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710 (or 695 counting only the distinct ones).

The product of its digits is 40960, while the sum is 41.

The square root of 18888125 is about 4346.0470545083. The cubic root of 18888125 is about 266.3154012156.

The spelling of 18888125 in words is "eighteen million, eight hundred eighty-eight thousand, one hundred twenty-five".