2585021853 has 8 divisors (see below), whose sum is σ = 3649442688. Its totient is φ = 1621974464.

The previous prime is 2585021843. The next prime is 2585021861. The reversal of 2585021853 is 3581205852.

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

It is a cyclic number.

It is not a de Polignac number, because 2585021853 - 2⁴ = 2585021837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585021843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25343301 + ... + 25343402.

It is an arithmetic number, because the mean of its divisors is an integer number (456180336).

Almost surely, 2^2585021853 is an apocalyptic number.

It is an amenable number.

2585021853 is a deficient number, since it is larger than the sum of its proper divisors (1064420835).

2585021853 is a wasteful number, since it uses less digits than its factorization.

2585021853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50686723.

The product of its (nonzero) digits is 96000, while the sum is 39.

The square root of 2585021853 is about 50843.1101822066. The cubic root of 2585021853 is about 1372.4232695549.

The spelling of 2585021853 in words is "two billion, five hundred eighty-five million, twenty-one thousand, eight hundred fifty-three".