2585655 has 32 divisors (see below), whose sum is σ = 4665600. Its totient is φ = 1358496.

The previous prime is 2585647. The next prime is 2585659. The reversal of 2585655 is 5565852.

It is not a de Polignac number, because 2585655 - 2³ = 2585647 is a prime.

It is a super-2 number, since 2×2585655² = 13371223558050, which contains 22 as substring.

Its product of digits (60000) is a multiple of the sum of its prime factors (300).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585659) 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 31 ways as a sum of consecutive naturals, for example, 14356 + ... + 14534.

It is an arithmetic number, because the mean of its divisors is an integer number (145800).

2^2585655 is an apocalyptic number.

2585655 is a deficient number, since it is larger than the sum of its proper divisors (2079945).

2585655 is a wasteful number, since it uses less digits than its factorization.

2585655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 294 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The square root of 2585655 is about 1607.9972014901. The cubic root of 2585655 is about 137.2535309193.

It can be divided in two parts, 2585 and 655, that added together give a triangular number (3240 = T₈₀).

The spelling of 2585655 in words is "two million, five hundred eighty-five thousand, six hundred fifty-five".