2205505555 has 16 divisors (see below), whose sum is σ = 2892430944. Its totient is φ = 1601102080.

The previous prime is 2205505553. The next prime is 2205505559. The reversal of 2205505555 is 5555055022.

It is not a de Polignac number, because 2205505555 - 2¹ = 2205505553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2205505555.

It is not an unprimeable number, because it can be changed into a prime (2205505553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5362 + ... + 66631.

It is an arithmetic number, because the mean of its divisors is an integer number (180776934).

Almost surely, 2^2205505555 is an apocalyptic number.

2205505555 is a deficient number, since it is larger than the sum of its proper divisors (686925389).

2205505555 is a wasteful number, since it uses less digits than its factorization.

2205505555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72566.

The product of its (nonzero) digits is 62500, while the sum is 34.

The square root of 2205505555 is about 46962.8103396720. The cubic root of 2205505555 is about 1301.6754639638.

The spelling of 2205505555 in words is "two billion, two hundred five million, five hundred five thousand, five hundred fifty-five".