2005550205 has 32 divisors (see below), whose sum is σ = 3351214080. Its totient is φ = 1022260800.

The previous prime is 2005550201. The next prime is 2005550227. The reversal of 2005550205 is 5020555002.

It is not a de Polignac number, because 2005550205 - 2² = 2005550201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005550201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 702030 + ... + 704880.

It is an arithmetic number, because the mean of its divisors is an integer number (104725440).

Almost surely, 2^2005550205 is an apocalyptic number.

It is an amenable number.

2005550205 is a deficient number, since it is larger than the sum of its proper divisors (1345663875).

2005550205 is a wasteful number, since it uses less digits than its factorization.

2005550205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4921.

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 2005550205 is about 44783.3697369905. The cubic root of 2005550205 is about 1261.0854434728.

The spelling of 2005550205 in words is "two billion, five million, five hundred fifty thousand, two hundred five".