2565530 has 32 divisors (see below), whose sum is σ = 5116608. Its totient is φ = 918400.

The previous prime is 2565463. The next prime is 2565559. The reversal of 2565530 is 355652.

2565530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2565530.

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 15 ways as a sum of consecutive naturals, for example, 8990 + ... + 9270.

It is an arithmetic number, because the mean of its divisors is an integer number (159894).

2^2565530 is an apocalyptic number.

2565530 is a deficient number, since it is larger than the sum of its proper divisors (2551078).

2565530 is a wasteful number, since it uses less digits than its factorization.

2565530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 2565530 is about 1601.7271927516. The cubic root of 2565530 is about 136.8965066322.

The spelling of 2565530 in words is "two million, five hundred sixty-five thousand, five hundred thirty".