20088185 has 12 divisors (see below), whose sum is σ = 26103852. Its totient is φ = 14833728.

The previous prime is 20088163. The next prime is 20088209. The reversal of 20088185 is 58188002.

It can be written as a sum of positive squares in 6 ways, for example, as 6390784 + 13697401 = 2528^2 + 3701^2 .

It is not a de Polignac number, because 20088185 - 2²² = 15893881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11042 + ... + 12731.

It is an arithmetic number, because the mean of its divisors is an integer number (2175321).

Almost surely, 2^20088185 is an apocalyptic number.

It is an amenable number.

20088185 is a deficient number, since it is larger than the sum of its proper divisors (6015667).

20088185 is a wasteful number, since it uses less digits than its factorization.

20088185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23804 (or 23791 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 20088185 is about 4481.9844935029. The cubic root of 20088185 is about 271.8401282618.

The spelling of 20088185 in words is "twenty million, eighty-eight thousand, one hundred eighty-five".