505534245577 has 2 divisors, whose sum is σ = 505534245578. Its totient is φ = 505534245576.

The previous prime is 505534245521. The next prime is 505534245599. The reversal of 505534245577 is 775542435505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 376469372041 + 129064873536 = 613571^2 + 359256^2 .

It is a cyclic number.

It is not a de Polignac number, because 505534245577 - 2⁷ = 505534245449 is a prime.

It is a super-2 number, since 2×505534245577² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (505534248577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252767122788 + 252767122789.

It is an arithmetic number, because the mean of its divisors is an integer number (252767122789).

Almost surely, 2^505534245577 is an apocalyptic number.

It is an amenable number.

505534245577 is a deficient number, since it is larger than the sum of its proper divisors (1).

505534245577 is an equidigital number, since it uses as much as digits as its factorization.

505534245577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14700000, while the sum is 52.

The spelling of 505534245577 in words is "five hundred five billion, five hundred thirty-four million, two hundred forty-five thousand, five hundred seventy-seven".