2555819808 has 48 divisors (see below), whose sum is σ = 7062138720. Its totient is φ = 807100416.

The previous prime is 2555819753. The next prime is 2555819821. The reversal of 2555819808 is 8089185552.

It is a tau number, because it is divible by the number of its divisors (48).

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, 698785 + ... + 702432.

It is an arithmetic number, because the mean of its divisors is an integer number (147127890).

Almost surely, 2^2555819808 is an apocalyptic number.

It is an amenable number.

2555819808 is an abundant number, since it is smaller than the sum of its proper divisors (4506318912).

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

2555819808 is a wasteful number, since it uses less digits than its factorization.

2555819808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401249 (or 1401241 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 51.

The square root of 2555819808 is about 50555.1165363111. The cubic root of 2555819808 is about 1367.2357654718.

The spelling of 2555819808 in words is "two billion, five hundred fifty-five million, eight hundred nineteen thousand, eight hundred eight".