2555255808 has 352 divisors, whose sum is σ = 8808977920. Its totient is φ = 725594112.

The previous prime is 2555255803. The next prime is 2555255821. The reversal of 2555255808 is 8085525552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555255803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15676335 + ... + 15676497.

Almost surely, 2^2555255808 is an apocalyptic number.

2555255808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2555255808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4404488960).

2555255808 is an abundant number, since it is smaller than the sum of its proper divisors (6253722112).

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

2555255808 is an frugal number, since it uses more digits than its factorization.

2555255808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 800000, while the sum is 45.

The square root of 2555255808 is about 50549.5381581276. The cubic root of 2555255808 is about 1367.1351874762.

The spelling of 2555255808 in words is "two billion, five hundred fifty-five million, two hundred fifty-five thousand, eight hundred eight".