505223233 has 2 divisors, whose sum is σ = 505223234. Its totient is φ = 505223232.

The previous prime is 505223209. The next prime is 505223237. The reversal of 505223233 is 332322505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310006449 + 195216784 = 17607^2 + 13972^2 .

It is a cyclic number.

It is not a de Polignac number, because 505223233 - 2⁹ = 505222721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505223198 and 505223207.

It is not a weakly prime, because it can be changed into another prime (505223237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252611616 + 252611617.

It is an arithmetic number, because the mean of its divisors is an integer number (252611617).

Almost surely, 2^505223233 is an apocalyptic number.

It is an amenable number.

505223233 is a deficient number, since it is larger than the sum of its proper divisors (1).

505223233 is an equidigital number, since it uses as much as digits as its factorization.

505223233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 505223233 is about 22477.1713745302. The cubic root of 505223233 is about 796.4547460302.

Adding to 505223233 its reverse (332322505), we get a palindrome (837545738).

The spelling of 505223233 in words is "five hundred five million, two hundred twenty-three thousand, two hundred thirty-three".