505202217019 has 4 divisors (see below), whose sum is σ = 513764966520. Its totient is φ = 496639467520.

The previous prime is 505202216989. The next prime is 505202217043. The reversal of 505202217019 is 910712202505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 505202217019 - 2⁹ = 505202216507 is a prime.

It is a super-2 number, since 2×505202217019² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505202217119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4281374662 + ... + 4281374779.

It is an arithmetic number, because the mean of its divisors is an integer number (128441241630).

Almost surely, 2^505202217019 is an apocalyptic number.

505202217019 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

505202217019 is a deficient number, since it is larger than the sum of its proper divisors (8562749501).

505202217019 is an equidigital number, since it uses as much as digits as its factorization.

505202217019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8562749500.

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 505202217019 in words is "five hundred five billion, two hundred two million, two hundred seventeen thousand, nineteen".