505310212 has 12 divisors (see below), whose sum is σ = 964683216. Its totient is φ = 229686440.

The previous prime is 505310209. The next prime is 505310213. The reversal of 505310212 is 212013505.

It is a self number, because there is not a number n which added to its sum of digits gives 505310212.

It is not an unprimeable number, because it can be changed into a prime (505310213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5742118 + ... + 5742205.

It is an arithmetic number, because the mean of its divisors is an integer number (80390268).

Almost surely, 2^505310212 is an apocalyptic number.

It is an amenable number.

505310212 is a deficient number, since it is larger than the sum of its proper divisors (459373004).

505310212 is a wasteful number, since it uses less digits than its factorization.

505310212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11484338 (or 11484336 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 505310212 is about 22479.1061210182. The cubic root of 505310212 is about 796.5004491688.

Adding to 505310212 its reverse (212013505), we get a palindrome (717323717).

The spelling of 505310212 in words is "five hundred five million, three hundred ten thousand, two hundred twelve".