2565834 has 16 divisors (see below), whose sum is σ = 5355072. Its totient is φ = 818048.

The previous prime is 2565809. The next prime is 2565847. The reversal of 2565834 is 4385652.

2565834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2565795 and 2565804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9159 + ... + 9434.

It is an arithmetic number, because the mean of its divisors is an integer number (334692).

2^2565834 is an apocalyptic number.

2565834 is an abundant number, since it is smaller than the sum of its proper divisors (2789238).

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

2565834 is a wasteful number, since it uses less digits than its factorization.

2565834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18621.

The product of its digits is 28800, while the sum is 33.

The square root of 2565834 is about 1601.8220874991. The cubic root of 2565834 is about 136.9019135584.

The spelling of 2565834 in words is "two million, five hundred sixty-five thousand, eight hundred thirty-four".