2566287 has 12 divisors (see below), whose sum is σ = 3722784. Its totient is φ = 1703520.

The previous prime is 2566279. The next prime is 2566307. The reversal of 2566287 is 7826652.

2566287 is a `hidden beast` number, since 25 + 6 + 628 + 7 = 666.

2566287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2566287 - 2³ = 2566279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566237) 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 11 ways as a sum of consecutive naturals, for example, 2362 + ... + 3272.

It is an arithmetic number, because the mean of its divisors is an integer number (310232).

2^2566287 is an apocalyptic number.

2566287 is a deficient number, since it is larger than the sum of its proper divisors (1156497).

2566287 is a wasteful number, since it uses less digits than its factorization.

2566287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230 (or 1227 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 2566287 is about 1601.9634827299. The cubic root of 2566287 is about 136.9099697976.

The spelling of 2566287 in words is "two million, five hundred sixty-six thousand, two hundred eighty-seven".