2585287 has 4 divisors (see below), whose sum is σ = 2634120. Its totient is φ = 2536456.

The previous prime is 2585279. The next prime is 2585293. The reversal of 2585287 is 7825852.

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 2585287 - 2³ = 2585279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24337 + ... + 24442.

It is an arithmetic number, because the mean of its divisors is an integer number (658530).

2^2585287 is an apocalyptic number.

2585287 is a deficient number, since it is larger than the sum of its proper divisors (48833).

2585287 is an equidigital number, since it uses as much as digits as its factorization.

2585287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48832.

The product of its digits is 44800, while the sum is 37.

The square root of 2585287 is about 1607.8827693585. The cubic root of 2585287 is about 137.2470191334.

The spelling of 2585287 in words is "two million, five hundred eighty-five thousand, two hundred eighty-seven".