2585853853 has 6 divisors (see below), whose sum is σ = 2842302302. Its totient is φ = 2350776120.

The previous prime is 2585853841. The next prime is 2585853863. The reversal of 2585853853 is 3583585852.

It can be written as a sum of positive squares in only one way, i.e., 1996481124 + 589372729 = 44682^2 + 24277^2 .

It is not a de Polignac number, because 2585853853 - 2²⁹ = 2048982941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2585853853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585853863) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10685226 + ... + 10685467.

Almost surely, 2^2585853853 is an apocalyptic number.

It is an amenable number.

2585853853 is a deficient number, since it is larger than the sum of its proper divisors (256448449).

2585853853 is a wasteful number, since it uses less digits than its factorization.

2585853853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21370715 (or 21370704 counting only the distinct ones).

The product of its digits is 5760000, while the sum is 52.

The square root of 2585853853 is about 50851.2915568523. The cubic root of 2585853853 is about 1372.5704938007.

The spelling of 2585853853 in words is "two billion, five hundred eighty-five million, eight hundred fifty-three thousand, eight hundred fifty-three".