2585261 has 8 divisors (see below), whose sum is σ = 2976960. Its totient is φ = 2199168.

The previous prime is 2585251. The next prime is 2585267. The reversal of 2585261 is 1625852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2585261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585267) 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 7 ways as a sum of consecutive naturals, for example, 356 + ... + 2301.

It is an arithmetic number, because the mean of its divisors is an integer number (372120).

2^2585261 is an apocalyptic number.

It is an amenable number.

2585261 is a deficient number, since it is larger than the sum of its proper divisors (391699).

2585261 is a wasteful number, since it uses less digits than its factorization.

2585261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803.

The product of its digits is 4800, while the sum is 29.

The square root of 2585261 is about 1607.8746841716. The cubic root of 2585261 is about 137.2465590382.

The spelling of 2585261 in words is "two million, five hundred eighty-five thousand, two hundred sixty-one".