2585005688 has 8 divisors (see below), whose sum is σ = 4846885680. Its totient is φ = 1292502840.

The previous prime is 2585005681. The next prime is 2585005691. The reversal of 2585005688 is 8865005852.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585005681) 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 as a sum of consecutive naturals, namely, 161562848 + ... + 161562863.

It is an arithmetic number, because the mean of its divisors is an integer number (605860710).

Almost surely, 2^2585005688 is an apocalyptic number.

It is an amenable number.

2585005688 is a deficient number, since it is larger than the sum of its proper divisors (2261879992).

2585005688 is a wasteful number, since it uses less digits than its factorization.

2585005688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323125717 (or 323125713 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 47.

The square root of 2585005688 is about 50842.9512125329. The cubic root of 2585005688 is about 1372.4204088095.

The spelling of 2585005688 in words is "two billion, five hundred eighty-five million, five thousand, six hundred eighty-eight".