205055211 has 8 divisors (see below), whose sum is σ = 273757504. Its totient is φ = 136528200.

The previous prime is 205055183. The next prime is 205055233. The reversal of 205055211 is 112550502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 205055211 - 2⁷ = 205055083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205054211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41065 + ... + 45786.

It is an arithmetic number, because the mean of its divisors is an integer number (34219688).

Almost surely, 2^205055211 is an apocalyptic number.

205055211 is a deficient number, since it is larger than the sum of its proper divisors (68702293).

205055211 is an equidigital number, since it uses as much as digits as its factorization.

205055211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87641.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 205055211 is about 14319.7489852302. The cubic root of 205055211 is about 589.6897832950.

The spelling of 205055211 in words is "two hundred five million, fifty-five thousand, two hundred eleven".