2265585 has 16 divisors (see below), whose sum is σ = 4142976. Its totient is φ = 1035648.

The previous prime is 2265581. The next prime is 2265587. The reversal of 2265585 is 5855622.

It is not a de Polignac number, because 2265585 - 2² = 2265581 is a prime.

It is a d-powerful number, because it can be written as 2 + 2¹⁸ + 6⁴ + 5⁴ + 5⁶ + 8⁵ + 5⁹ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2265581) 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, 10684 + ... + 10893.

It is an arithmetic number, because the mean of its divisors is an integer number (258936).

2^2265585 is an apocalyptic number.

It is an amenable number.

2265585 is a deficient number, since it is larger than the sum of its proper divisors (1877391).

2265585 is a wasteful number, since it uses less digits than its factorization.

2265585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21592.

The product of its digits is 24000, while the sum is 33.

The square root of 2265585 is about 1505.1860350136. The cubic root of 2265585 is about 131.3389238661.

It can be divided in two parts, 2265 and 585, that added together give a triangular number (2850 = T₇₅).

The spelling of 2265585 in words is "two million, two hundred sixty-five thousand, five hundred eighty-five".