2585291 has 4 divisors (see below), whose sum is σ = 2589552. Its totient is φ = 2581032.

The previous prime is 2585279. The next prime is 2585293. The reversal of 2585291 is 1925852.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2585291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2585293) 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, 1031 + ... + 2496.

It is an arithmetic number, because the mean of its divisors is an integer number (647388).

2^2585291 is an apocalyptic number.

2585291 is a deficient number, since it is larger than the sum of its proper divisors (4261).

2585291 is an equidigital number, since it uses as much as digits as its factorization.

2585291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4260.

The product of its digits is 7200, while the sum is 32.

The square root of 2585291 is about 1607.8840132298. The cubic root of 2585291 is about 137.2470899170.

It can be divided in two parts, 25852 and 91, that multiplied together give a palindrome (2352532).

The spelling of 2585291 in words is "two million, five hundred eighty-five thousand, two hundred ninety-one".