505755601742371 has 2 divisors, whose sum is σ = 505755601742372. Its totient is φ = 505755601742370.

The previous prime is 505755601742317. The next prime is 505755601742381. The reversal of 505755601742371 is 173247106557505.

Together with previous prime (505755601742317) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505755601742371 - 2¹⁹ = 505755601218083 is a prime.

It is not a weakly prime, because it can be changed into another prime (505755601742381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252877800871185 + 252877800871186.

It is an arithmetic number, because the mean of its divisors is an integer number (252877800871186).

Almost surely, 2^{505755601742371} is an apocalyptic number.

505755601742371 is a deficient number, since it is larger than the sum of its proper divisors (1).

505755601742371 is an equidigital number, since it uses as much as digits as its factorization.

505755601742371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30870000, while the sum is 58.

The spelling of 505755601742371 in words is "five hundred five trillion, seven hundred fifty-five billion, six hundred one million, seven hundred forty-two thousand, three hundred seventy-one".