20250189 has 16 divisors (see below), whose sum is σ = 31305600. Its totient is φ = 12912768.

The previous prime is 20250163. The next prime is 20250193. The reversal of 20250189 is 98105202.

It is not a de Polignac number, because 20250189 - 2²³ = 11861581 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20250199) 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, 15684 + ... + 16925.

It is an arithmetic number, because the mean of its divisors is an integer number (1956600).

Almost surely, 2^20250189 is an apocalyptic number.

It is an amenable number.

20250189 is a deficient number, since it is larger than the sum of its proper divisors (11055411).

20250189 is a wasteful number, since it uses less digits than its factorization.

20250189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32641 (or 32635 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 20250189 is about 4500.0209999510. The cubic root of 20250189 is about 272.5689369118.

The spelling of 20250189 in words is "twenty million, two hundred fifty thousand, one hundred eighty-nine".