505530233 has 8 divisors (see below), whose sum is σ = 563190600. Its totient is φ = 450551808.

The previous prime is 505530227. The next prime is 505530293. The reversal of 505530233 is 332035505.

It can be written as a sum of positive squares in 4 ways, for example, as 44944 + 505485289 = 212^2 + 22483^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505530233 - 2¹⁰ = 505529209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505530203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670088 + ... + 670841.

It is an arithmetic number, because the mean of its divisors is an integer number (70398825).

Almost surely, 2^505530233 is an apocalyptic number.

It is an amenable number.

505530233 is a deficient number, since it is larger than the sum of its proper divisors (57660367).

505530233 is a wasteful number, since it uses less digits than its factorization.

505530233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340971.

The product of its (nonzero) digits is 6750, while the sum is 26.

The square root of 505530233 is about 22483.9994885252. Note that the first 3 decimals coincide. The cubic root of 505530233 is about 796.6160358534.

Adding to 505530233 its reverse (332035505), we get a palindrome (837565738).

The spelling of 505530233 in words is "five hundred five million, five hundred thirty thousand, two hundred thirty-three".