505667207 has 4 divisors (see below), whose sum is σ = 507590160. Its totient is φ = 503744256.

The previous prime is 505667191. The next prime is 505667209. The reversal of 505667207 is 702766505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 505667207 - 2⁴ = 505667191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505667209) 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 3 ways as a sum of consecutive naturals, for example, 961082 + ... + 961607.

It is an arithmetic number, because the mean of its divisors is an integer number (126897540).

Almost surely, 2^505667207 is an apocalyptic number.

505667207 is a deficient number, since it is larger than the sum of its proper divisors (1922953).

505667207 is a wasteful number, since it uses less digits than its factorization.

505667207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922952.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 505667207 is about 22487.0453150253. The cubic root of 505667207 is about 796.6879773676.

The spelling of 505667207 in words is "five hundred five million, six hundred sixty-seven thousand, two hundred seven".