505224311 has 8 divisors (see below), whose sum is σ = 508012224. Its totient is φ = 502444800.

The previous prime is 505224289. The next prime is 505224319. The reversal of 505224311 is 113422505.

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

It is a cyclic number.

It is not a de Polignac number, because 505224311 - 2¹⁰ = 505223287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505224319) 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 in 7 ways as a sum of consecutive naturals, for example, 145451 + ... + 148883.

It is an arithmetic number, because the mean of its divisors is an integer number (63501528).

Almost surely, 2^505224311 is an apocalyptic number.

505224311 is a deficient number, since it is larger than the sum of its proper divisors (2787913).

505224311 is a wasteful number, since it uses less digits than its factorization.

505224311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4201.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 505224311 is about 22477.1953544031. The cubic root of 505224311 is about 796.4553124977.

Adding to 505224311 its reverse (113422505), we get a palindrome (618646816).

The spelling of 505224311 in words is "five hundred five million, two hundred twenty-four thousand, three hundred eleven".