506305361 has 4 divisors (see below), whose sum is σ = 522637824. Its totient is φ = 489972900.

The previous prime is 506305301. The next prime is 506305363. The reversal of 506305361 is 163503605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 506305361 - 2²⁶ = 439196497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506305363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8166185 + ... + 8166246.

It is an arithmetic number, because the mean of its divisors is an integer number (130659456).

Almost surely, 2^506305361 is an apocalyptic number.

It is an amenable number.

506305361 is a deficient number, since it is larger than the sum of its proper divisors (16332463).

506305361 is a wasteful number, since it uses less digits than its factorization.

506305361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16332462.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 506305361 is about 22501.2302108129. The cubic root of 506305361 is about 797.0229776014.

Adding to 506305361 its reverse (163503605), we get a palindrome (669808966).

The spelling of 506305361 in words is "five hundred six million, three hundred five thousand, three hundred sixty-one".