505340508073 has 2 divisors, whose sum is σ = 505340508074. Its totient is φ = 505340508072.

The previous prime is 505340508037. The next prime is 505340508173. The reversal of 505340508073 is 370805043505.

Together with previous prime (505340508037) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312467584144 + 192872923929 = 558988^2 + 439173^2 .

It is a cyclic number.

It is not a de Polignac number, because 505340508073 - 2¹⁷ = 505340377001 is a prime.

It is not a weakly prime, because it can be changed into another prime (505340508173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252670254036 + 252670254037.

It is an arithmetic number, because the mean of its divisors is an integer number (252670254037).

Almost surely, 2^505340508073 is an apocalyptic number.

It is an amenable number.

505340508073 is a deficient number, since it is larger than the sum of its proper divisors (1).

505340508073 is an equidigital number, since it uses as much as digits as its factorization.

505340508073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 505340508073 in words is "five hundred five billion, three hundred forty million, five hundred eight thousand, seventy-three".