505213171163 has 2 divisors, whose sum is σ = 505213171164. Its totient is φ = 505213171162.

The previous prime is 505213171153. The next prime is 505213171189. The reversal of 505213171163 is 361171312505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505213171163 - 2¹⁰ = 505213170139 is a prime.

It is not a weakly prime, because it can be changed into another prime (505213171123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252606585581 + 252606585582.

It is an arithmetic number, because the mean of its divisors is an integer number (252606585582).

Almost surely, 2^505213171163 is an apocalyptic number.

505213171163 is a deficient number, since it is larger than the sum of its proper divisors (1).

505213171163 is an equidigital number, since it uses as much as digits as its factorization.

505213171163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 35.

Adding to 505213171163 its reverse (361171312505), we get a palindrome (866384483668).

The spelling of 505213171163 in words is "five hundred five billion, two hundred thirteen million, one hundred seventy-one thousand, one hundred sixty-three".