2005589 has 4 divisors (see below), whose sum is σ = 2017356. Its totient is φ = 1993824.

The previous prime is 2005579. The next prime is 2005613. The reversal of 2005589 is 9855002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1868689 + 136900 = 1367^2 + 370^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005589 - 2¹⁶ = 1940053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5624 + ... + 5969.

It is an arithmetic number, because the mean of its divisors is an integer number (504339).

2^2005589 is an apocalyptic number.

It is an amenable number.

2005589 is a deficient number, since it is larger than the sum of its proper divisors (11767).

2005589 is a wasteful number, since it uses less digits than its factorization.

2005589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11766.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 2005589 is about 1416.1881937087. The cubic root of 2005589 is about 126.1093574823.

The spelling of 2005589 in words is "two million, five thousand, five hundred eighty-nine".