2585027808 has 144 divisors (see below), whose sum is σ = 8051726592. Its totient is φ = 780192000.

The previous prime is 2585027791. The next prime is 2585027813. The reversal of 2585027808 is 8087205852.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 857023 + ... + 860033.

It is an arithmetic number, because the mean of its divisors is an integer number (55914768).

Almost surely, 2^2585027808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2585027808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4025863296).

2585027808 is an abundant number, since it is smaller than the sum of its proper divisors (5466698784).

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

2585027808 is a wasteful number, since it uses less digits than its factorization.

2585027808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309 (or 3298 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The square root of 2585027808 is about 50843.1687446799. The cubic root of 2585027808 is about 1372.4243234176.

The spelling of 2585027808 in words is "two billion, five hundred eighty-five million, twenty-seven thousand, eight hundred eight".