505005211 has 2 divisors, whose sum is σ = 505005212. Its totient is φ = 505005210.

The previous prime is 505005203. The next prime is 505005233. The reversal of 505005211 is 112500505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505005211 - 2³ = 505005203 is a prime.

It is not a weakly prime, because it can be changed into another prime (505005911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252502605 + 252502606.

It is an arithmetic number, because the mean of its divisors is an integer number (252502606).

Almost surely, 2^505005211 is an apocalyptic number.

505005211 is a deficient number, since it is larger than the sum of its proper divisors (1).

505005211 is an equidigital number, since it uses as much as digits as its factorization.

505005211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 505005211 is about 22472.3209971734. The cubic root of 505005211 is about 796.3401632549.

Adding to 505005211 its reverse (112500505), we get a palindrome (617505716).

The spelling of 505005211 in words is "five hundred five million, five thousand, two hundred eleven".