505495567 has 2 divisors, whose sum is σ = 505495568. Its totient is φ = 505495566.

The previous prime is 505495553. The next prime is 505495643. The reversal of 505495567 is 765594505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505495567 - 2¹⁵ = 505462799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505495537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252747783 + 252747784.

It is an arithmetic number, because the mean of its divisors is an integer number (252747784).

Almost surely, 2^505495567 is an apocalyptic number.

505495567 is a deficient number, since it is larger than the sum of its proper divisors (1).

505495567 is an equidigital number, since it uses as much as digits as its factorization.

505495567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 945000, while the sum is 46.

The square root of 505495567 is about 22483.2285715375. The cubic root of 505495567 is about 796.5978265087.

The spelling of 505495567 in words is "five hundred five million, four hundred ninety-five thousand, five hundred sixty-seven".