2005888556 has 24 divisors (see below), whose sum is σ = 4060116480. Its totient is φ = 849308112.

The previous prime is 2005888543. The next prime is 2005888571. The reversal of 2005888556 is 6558885002.

It is a self number, because there is not a number n which added to its sum of digits gives 2005888556.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429236 + ... + 433883.

It is an arithmetic number, because the mean of its divisors is an integer number (169171520).

Almost surely, 2^2005888556 is an apocalyptic number.

It is an amenable number.

2005888556 is an abundant number, since it is smaller than the sum of its proper divisors (2054227924).

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

2005888556 is a wasteful number, since it uses less digits than its factorization.

2005888556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863213 (or 863211 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 47.

The square root of 2005888556 is about 44787.1472188171. The cubic root of 2005888556 is about 1261.1563576002.

The spelling of 2005888556 in words is "two billion, five million, eight hundred eighty-eight thousand, five hundred fifty-six".