2585223843 has 4 divisors (see below), whose sum is σ = 3446965128. Its totient is φ = 1723482560.

The previous prime is 2585223841. The next prime is 2585223863. The reversal of 2585223843 is 3483225852.

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 2585223843 - 2¹ = 2585223841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2585223795 and 2585223804.

It is not an unprimeable number, because it can be changed into a prime (2585223841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430870638 + ... + 430870643.

It is an arithmetic number, because the mean of its divisors is an integer number (861741282).

Almost surely, 2^2585223843 is an apocalyptic number.

2585223843 is a deficient number, since it is larger than the sum of its proper divisors (861741285).

2585223843 is an equidigital number, since it uses as much as digits as its factorization.

2585223843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861741284.

The product of its digits is 460800, while the sum is 42.

The square root of 2585223843 is about 50845.0965482415. The cubic root of 2585223843 is about 1372.4590150369.

The spelling of 2585223843 in words is "two billion, five hundred eighty-five million, two hundred twenty-three thousand, eight hundred forty-three".