505555003819 has 2 divisors, whose sum is σ = 505555003820. Its totient is φ = 505555003818.

The previous prime is 505555003813. The next prime is 505555003841. The reversal of 505555003819 is 918300555505.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505555003819 - 2¹¹ = 505555001771 is a prime.

It is a super-2 number, since 2×505555003819² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (505555003813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252777501909 + 252777501910.

It is an arithmetic number, because the mean of its divisors is an integer number (252777501910).

Almost surely, 2^505555003819 is an apocalyptic number.

505555003819 is a deficient number, since it is larger than the sum of its proper divisors (1).

505555003819 is an equidigital number, since it uses as much as digits as its factorization.

505555003819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 675000, while the sum is 46.

The spelling of 505555003819 in words is "five hundred five billion, five hundred fifty-five million, three thousand, eight hundred nineteen".