2585085291 has 12 divisors (see below), whose sum is σ = 3747210168. Its totient is φ = 1717298784.

The previous prime is 2585085287. The next prime is 2585085313. The reversal of 2585085291 is 1925805852.

It is a happy number.

2585085291 is a `hidden beast` number, since 2 + 5 + 8 + 508 + 52 + 91 = 666.

It is not a de Polignac number, because 2585085291 - 2² = 2585085287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2585085241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 504930 + ... + 510023.

It is an arithmetic number, because the mean of its divisors is an integer number (312267514).

Almost surely, 2^2585085291 is an apocalyptic number.

2585085291 is a deficient number, since it is larger than the sum of its proper divisors (1162124877).

2585085291 is a wasteful number, since it uses less digits than its factorization.

2585085291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015242 (or 1015239 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 45.

The square root of 2585085291 is about 50843.7340387191. The cubic root of 2585085291 is about 1372.4344961621.

The spelling of 2585085291 in words is "two billion, five hundred eighty-five million, eighty-five thousand, two hundred ninety-one".