2585559 has 4 divisors (see below), whose sum is σ = 3447416. Its totient is φ = 1723704.

The previous prime is 2585549. The next prime is 2585579. The reversal of 2585559 is 9555852.

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

It is not a de Polignac number, because 2585559 - 2¹⁹ = 2061271 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585509) 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, 430924 + ... + 430929.

It is an arithmetic number, because the mean of its divisors is an integer number (861854).

2^2585559 is an apocalyptic number.

2585559 is a deficient number, since it is larger than the sum of its proper divisors (861857).

2585559 is an equidigital number, since it uses as much as digits as its factorization.

2585559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861856.

The product of its digits is 90000, while the sum is 39.

The square root of 2585559 is about 1607.9673504148. The cubic root of 2585559 is about 137.2518322521.

The spelling of 2585559 in words is "two million, five hundred eighty-five thousand, five hundred fifty-nine".