505212304 has 10 divisors (see below), whose sum is σ = 978848870. Its totient is φ = 252606144.

The previous prime is 505212293. The next prime is 505212313. The reversal of 505212304 is 403212505.

It can be written as a sum of positive squares in only one way, i.e., 503912704 + 1299600 = 22448^2 + 1140^2 .

It is a super-3 number, since 3×505212304³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15787869 + ... + 15787900.

It is an arithmetic number, because the mean of its divisors is an integer number (97884887).

Almost surely, 2^505212304 is an apocalyptic number.

It is an amenable number.

505212304 is a deficient number, since it is larger than the sum of its proper divisors (473636566).

505212304 is a wasteful number, since it uses less digits than its factorization.

505212304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31575777 (or 31575771 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 505212304 is about 22476.9282598846. The cubic root of 505212304 is about 796.4490030133.

Adding to 505212304 its reverse (403212505), we get a palindrome (908424809).

It can be divided in two parts, 50521 and 2304, that added together give a palindrome (52825).

The spelling of 505212304 in words is "five hundred five million, two hundred twelve thousand, three hundred four".