2565287 has 4 divisors (see below), whose sum is σ = 2580816. Its totient is φ = 2549760.

The previous prime is 2565263. The next prime is 2565289. The reversal of 2565287 is 7825652.

2565287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2565287 - 2¹² = 2561191 is a prime.

It is a d-powerful number, because it can be written as 2¹⁶ + 5⁶ + 6³ + 5⁹ + 2¹⁹ + 8⁴ + 7⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565289) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7514 + ... + 7847.

It is an arithmetic number, because the mean of its divisors is an integer number (645204).

2^2565287 is an apocalyptic number.

2565287 is a deficient number, since it is larger than the sum of its proper divisors (15529).

2565287 is a wasteful number, since it uses less digits than its factorization.

2565287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15528.

The product of its digits is 33600, while the sum is 35.

The square root of 2565287 is about 1601.6513353411. The cubic root of 2565287 is about 136.8921843412.

The spelling of 2565287 in words is "two million, five hundred sixty-five thousand, two hundred eighty-seven".