20089503 has 12 divisors (see below), whose sum is σ = 33163728. Its totient is φ = 11479680.

The previous prime is 20089477. The next prime is 20089507. The reversal of 20089503 is 30598002.

It is not a de Polignac number, because 20089503 - 2⁸ = 20089247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20089507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159378 + ... + 159503.

It is an arithmetic number, because the mean of its divisors is an integer number (2763644).

Almost surely, 2^20089503 is an apocalyptic number.

20089503 is a deficient number, since it is larger than the sum of its proper divisors (13074225).

20089503 is a wasteful number, since it uses less digits than its factorization.

20089503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318894 (or 318891 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 20089503 is about 4482.1315241746. The cubic root of 20089503 is about 271.8460733394.

It can be divided in two parts, 2008 and 9503, that added together give a palindrome (11511).

The spelling of 20089503 in words is "twenty million, eighty-nine thousand, five hundred three".