2555565800 has 48 divisors (see below), whose sum is σ = 6291210060. Its totient is φ = 962094080.

The previous prime is 2555565799. The next prime is 2555565833. The reversal of 2555565800 is 85655552.

It can be written as a sum of positive squares in 6 ways, for example, as 2103323044 + 452242756 = 45862^2 + 21266^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372419 + ... + 379218.

Almost surely, 2^2555565800 is an apocalyptic number.

2555565800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2555565800 is an abundant number, since it is smaller than the sum of its proper divisors (3735644260).

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

2555565800 is a wasteful number, since it uses less digits than its factorization.

2555565800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751670 (or 751661 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 41.

The square root of 2555565800 is about 50552.6042850415. The cubic root of 2555565800 is about 1367.1904701127.

The spelling of 2555565800 in words is "two billion, five hundred fifty-five million, five hundred sixty-five thousand, eight hundred".