2585605 has 16 divisors (see below), whose sum is σ = 3452544. Its totient is φ = 1842880.

The previous prime is 2585603. The next prime is 2585623. The reversal of 2585605 is 5065852.

It is not a de Polignac number, because 2585605 - 2¹ = 2585603 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 (2585603) 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, 2472 + ... + 3358.

It is an arithmetic number, because the mean of its divisors is an integer number (215784).

2^2585605 is an apocalyptic number.

It is an amenable number.

2585605 is a deficient number, since it is larger than the sum of its proper divisors (866939).

2585605 is a wasteful number, since it uses less digits than its factorization.

2585605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 2585605 is about 1607.9816541242. The cubic root of 2585605 is about 137.2526462021.

The spelling of 2585605 in words is "two million, five hundred eighty-five thousand, six hundred five".