505669305 has 8 divisors (see below), whose sum is σ = 809070912. Its totient is φ = 269690288.

The previous prime is 505669291. The next prime is 505669309. The reversal of 505669305 is 503966505.

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 505669305 - 2⁵ = 505669273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505669309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16855629 + ... + 16855658.

It is an arithmetic number, because the mean of its divisors is an integer number (101133864).

Almost surely, 2^505669305 is an apocalyptic number.

It is an amenable number.

505669305 is a deficient number, since it is larger than the sum of its proper divisors (303401607).

505669305 is a wasteful number, since it uses less digits than its factorization.

505669305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33711295.

The product of its (nonzero) digits is 121500, while the sum is 39.

The square root of 505669305 is about 22487.0919640580. The cubic root of 505669305 is about 796.6890791786.

The spelling of 505669305 in words is "five hundred five million, six hundred sixty-nine thousand, three hundred five".