505220233 has 12 divisors (see below), whose sum is σ = 592198992. Its totient is φ = 429734760.

The previous prime is 505220227. The next prime is 505220251. The reversal of 505220233 is 332022505.

It is not a de Polignac number, because 505220233 - 2⁹ = 505219721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505220213) 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 11 ways as a sum of consecutive naturals, for example, 32935 + ... + 45772.

It is an arithmetic number, because the mean of its divisors is an integer number (49349916).

Almost surely, 2^505220233 is an apocalyptic number.

It is an amenable number.

505220233 is a deficient number, since it is larger than the sum of its proper divisors (86978759).

505220233 is a wasteful number, since it uses less digits than its factorization.

505220233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78852 (or 78845 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 505220233 is about 22477.1046400554. The cubic root of 505220233 is about 796.4531695858.

Adding to 505220233 its reverse (332022505), we get a palindrome (837242738).

The spelling of 505220233 in words is "five hundred five million, two hundred twenty thousand, two hundred thirty-three".