2585055222 has 80 divisors (see below), whose sum is σ = 6175065600. Its totient is φ = 805924080.

The previous prime is 2585055217. The next prime is 2585055223. The reversal of 2585055222 is 2225505852.

2585055222 is a `hidden beast` number, since 2 + 5 + 85 + 0 + 552 + 22 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585055223) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 237847 + ... + 248477.

It is an arithmetic number, because the mean of its divisors is an integer number (77188320).

Almost surely, 2^2585055222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2585055222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3087532800).

2585055222 is an abundant number, since it is smaller than the sum of its proper divisors (3590010378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2585055222 is a wasteful number, since it uses less digits than its factorization.

2585055222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10743 (or 10734 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The square root of 2585055222 is about 50843.4383377049. The cubic root of 2585055222 is about 1372.4291748815.

The spelling of 2585055222 in words is "two billion, five hundred eighty-five million, fifty-five thousand, two hundred twenty-two".