20032589 has 2 divisors, whose sum is σ = 20032590. Its totient is φ = 20032588.

The previous prime is 20032567. The next prime is 20032601. The reversal of 20032589 is 98523002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18748900 + 1283689 = 4330^2 + 1133^2 .

It is a cyclic number.

It is not a de Polignac number, because 20032589 - 2¹⁶ = 19967053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20032489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10016294 + 10016295.

It is an arithmetic number, because the mean of its divisors is an integer number (10016295).

Almost surely, 2^20032589 is an apocalyptic number.

It is an amenable number.

20032589 is a deficient number, since it is larger than the sum of its proper divisors (1).

20032589 is an equidigital number, since it uses as much as digits as its factorization.

20032589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 20032589 is about 4475.7780329234. The cubic root of 20032589 is about 271.5891152462.

The spelling of 20032589 in words is "twenty million, thirty-two thousand, five hundred eighty-nine".