505345211 has 8 divisors (see below), whose sum is σ = 580276224. Its totient is φ = 431098920.

The previous prime is 505345199. The next prime is 505345219. The reversal of 505345211 is 112543505.

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

It is not a de Polignac number, because 505345211 - 2¹⁴ = 505328827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505345219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169595 + ... + 172548.

It is an arithmetic number, because the mean of its divisors is an integer number (72534528).

Almost surely, 2^505345211 is an apocalyptic number.

505345211 is a deficient number, since it is larger than the sum of its proper divisors (74931013).

505345211 is a wasteful number, since it uses less digits than its factorization.

505345211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342361.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 505345211 is about 22479.8845860027. The cubic root of 505345211 is about 796.5188379228.

Adding to 505345211 its reverse (112543505), we get a palindrome (617888716).

The spelling of 505345211 in words is "five hundred five million, three hundred forty-five thousand, two hundred eleven".