505422919 has 2 divisors, whose sum is σ = 505422920. Its totient is φ = 505422918.

The previous prime is 505422889. The next prime is 505422941. The reversal of 505422919 is 919224505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505422919 - 2¹⁹ = 504898631 is a prime.

It is a super-2 number, since 2×505422919² = 510904654100961122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505422319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252711459 + 252711460.

It is an arithmetic number, because the mean of its divisors is an integer number (252711460).

Almost surely, 2^505422919 is an apocalyptic number.

505422919 is a deficient number, since it is larger than the sum of its proper divisors (1).

505422919 is an equidigital number, since it uses as much as digits as its factorization.

505422919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 505422919 is about 22481.6129092198. The cubic root of 505422919 is about 796.5596632914.

The spelling of 505422919 in words is "five hundred five million, four hundred twenty-two thousand, nine hundred nineteen".