2585228879 has 4 divisors (see below), whose sum is σ = 2737301184. Its totient is φ = 2433156576.

The previous prime is 2585228873. The next prime is 2585228881. The reversal of 2585228879 is 9788225852.

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 2585228879 - 2²⁰ = 2584180303 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 (2585228873) 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, 76036127 + ... + 76036160.

It is an arithmetic number, because the mean of its divisors is an integer number (684325296).

Almost surely, 2^2585228879 is an apocalyptic number.

2585228879 is a deficient number, since it is larger than the sum of its proper divisors (152072305).

2585228879 is a wasteful number, since it uses less digits than its factorization.

2585228879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152072304.

The product of its digits is 6451200, while the sum is 56.

The square root of 2585228879 is about 50845.1460711836. The cubic root of 2585228879 is about 1372.4599062168.

The spelling of 2585228879 in words is "two billion, five hundred eighty-five million, two hundred twenty-eight thousand, eight hundred seventy-nine".