505423233 has 24 divisors (see below), whose sum is σ = 865254208. Its totient is φ = 288812304.

The previous prime is 505423201. The next prime is 505423241. The reversal of 505423233 is 332324505.

505423233 is a `hidden beast` number, since 5 + 0 + 5 + 423 + 233 = 666.

It is not a de Polignac number, because 505423233 - 2⁵ = 505423201 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 505423197 and 505423206.

It is not an unprimeable number, because it can be changed into a prime (505423273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146866 + ... + 150267.

Almost surely, 2^505423233 is an apocalyptic number.

It is an amenable number.

505423233 is a deficient number, since it is larger than the sum of its proper divisors (359830975).

505423233 is an equidigital number, since it uses as much as digits as its factorization.

505423233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297155 (or 297143 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 505423233 is about 22481.6198927035. The cubic root of 505423233 is about 796.5598282488.

Adding to 505423233 its reverse (332324505), we get a palindrome (837747738).

The spelling of 505423233 in words is "five hundred five million, four hundred twenty-three thousand, two hundred thirty-three".