2565846 has 12 divisors (see below), whose sum is σ = 5559372. Its totient is φ = 855276.

The previous prime is 2565809. The next prime is 2565847. The reversal of 2565846 is 6485652.

It is a d-powerful number, because it can be written as 2²¹ + 5⁴ + 6² + 5⁸ + 8⁴ + 4⁸ + 6⁵ .

It is a self number, because there is not a number n which added to its sum of digits gives 2565846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71256 + ... + 71291.

It is an arithmetic number, because the mean of its divisors is an integer number (463281).

2^2565846 is an apocalyptic number.

2565846 is an abundant number, since it is smaller than the sum of its proper divisors (2993526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2565846 is a wasteful number, since it uses less digits than its factorization.

2565846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142555 (or 142552 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 2565846 is about 1601.8258332291. The cubic root of 2565846 is about 136.9021269809.

The spelling of 2565846 in words is "two million, five hundred sixty-five thousand, eight hundred forty-six".