505197271 has 2 divisors, whose sum is σ = 505197272. Its totient is φ = 505197270.

The previous prime is 505197263. The next prime is 505197281. The reversal of 505197271 is 172791505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505197271 - 2³ = 505197263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505197271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505197221) 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 as a sum of consecutive naturals, namely, 252598635 + 252598636.

It is an arithmetic number, because the mean of its divisors is an integer number (252598636).

Almost surely, 2^505197271 is an apocalyptic number.

505197271 is a deficient number, since it is larger than the sum of its proper divisors (1).

505197271 is an equidigital number, since it uses as much as digits as its factorization.

505197271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22050, while the sum is 37.

The square root of 505197271 is about 22476.5938478231. The cubic root of 505197271 is about 796.4411032739.

The spelling of 505197271 in words is "five hundred five million, one hundred ninety-seven thousand, two hundred seventy-one".