505135667 has 2 divisors, whose sum is σ = 505135668. Its totient is φ = 505135666.

The previous prime is 505135661. The next prime is 505135681. The reversal of 505135667 is 766531505.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505135667 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505135667.

It is not a weakly prime, because it can be changed into another prime (505135661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252567833 + 252567834.

It is an arithmetic number, because the mean of its divisors is an integer number (252567834).

Almost surely, 2^505135667 is an apocalyptic number.

505135667 is a deficient number, since it is larger than the sum of its proper divisors (1).

505135667 is an equidigital number, since it uses as much as digits as its factorization.

505135667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94500, while the sum is 38.

The square root of 505135667 is about 22475.2234026717. The cubic root of 505135667 is about 796.4087291533.

The spelling of 505135667 in words is "five hundred five million, one hundred thirty-five thousand, six hundred sixty-seven".