2585142218 has 16 divisors (see below), whose sum is σ = 3920017920. Its totient is φ = 1278544176.

The previous prime is 2585142193. The next prime is 2585142227. The reversal of 2585142218 is 8122415852.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51563 + ... + 88481.

It is an arithmetic number, because the mean of its divisors is an integer number (245001120).

Almost surely, 2^2585142218 is an apocalyptic number.

2585142218 is a deficient number, since it is larger than the sum of its proper divisors (1334875702).

2585142218 is a wasteful number, since it uses less digits than its factorization.

2585142218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37301.

The product of its digits is 51200, while the sum is 38.

The square root of 2585142218 is about 50844.2938587999. The cubic root of 2585142218 is about 1372.4445703630. Note that the first 3 decimals are identical.

The spelling of 2585142218 in words is "two billion, five hundred eighty-five million, one hundred forty-two thousand, two hundred eighteen".