505244223 has 20 divisors (see below), whose sum is σ = 823362408. Its totient is φ = 306208080.

The previous prime is 505244203. The next prime is 505244237. The reversal of 505244223 is 322442505.

It is a happy number.

It is not a de Polignac number, because 505244223 - 2¹³ = 505236031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505244203) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 282636 + ... + 284417.

Almost surely, 2^505244223 is an apocalyptic number.

505244223 is a deficient number, since it is larger than the sum of its proper divisors (318118185).

505244223 is a wasteful number, since it uses less digits than its factorization.

505244223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567076 (or 567067 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 505244223 is about 22477.6382878629. The cubic root of 505244223 is about 796.4657757114.

Adding to 505244223 its reverse (322442505), we get a palindrome (827686728).

The spelling of 505244223 in words is "five hundred five million, two hundred forty-four thousand, two hundred twenty-three".