505013223 has 48 divisors (see below), whose sum is σ = 805575680. Its totient is φ = 279512640.

The previous prime is 505013207. The next prime is 505013227. The reversal of 505013223 is 322310505.

It is not a de Polignac number, because 505013223 - 2⁴ = 505013207 is a prime.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 505013223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505013227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 485538 + ... + 486576.

Almost surely, 2^505013223 is an apocalyptic number.

505013223 is a deficient number, since it is larger than the sum of its proper divisors (300562457).

505013223 is a wasteful number, since it uses less digits than its factorization.

505013223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180 (or 1169 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 505013223 is about 22472.4992602069. The cubic root of 505013223 is about 796.3443745934.

Adding to 505013223 its reverse (322310505), we get a palindrome (827323728).

The spelling of 505013223 in words is "five hundred five million, thirteen thousand, two hundred twenty-three".