505005550019 has 2 divisors, whose sum is σ = 505005550020. Its totient is φ = 505005550018.

The previous prime is 505005549899. The next prime is 505005550033. The reversal of 505005550019 is 910055500505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505005550019 - 2¹⁶ = 505005484483 is a prime.

It is a super-2 number, since 2×505005550019² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (505005550079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252502775009 + 252502775010.

It is an arithmetic number, because the mean of its divisors is an integer number (252502775010).

Almost surely, 2^505005550019 is an apocalyptic number.

505005550019 is a deficient number, since it is larger than the sum of its proper divisors (1).

505005550019 is an equidigital number, since it uses as much as digits as its factorization.

505005550019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28125, while the sum is 35.

The spelling of 505005550019 in words is "five hundred five billion, five million, five hundred fifty thousand, nineteen".