505005780659 has 2 divisors, whose sum is σ = 505005780660. Its totient is φ = 505005780658.

The previous prime is 505005780641. The next prime is 505005780691. The reversal of 505005780659 is 956087500505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505005780659 - 2²⁰ = 505004732083 is a prime.

It is not a weakly prime, because it can be changed into another prime (505005780619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252502890329 + 252502890330.

It is an arithmetic number, because the mean of its divisors is an integer number (252502890330).

Almost surely, 2^505005780659 is an apocalyptic number.

505005780659 is a deficient number, since it is larger than the sum of its proper divisors (1).

505005780659 is an equidigital number, since it uses as much as digits as its factorization.

505005780659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890000, while the sum is 50.

The spelling of 505005780659 in words is "five hundred five billion, five million, seven hundred eighty thousand, six hundred fifty-nine".