505910509099 has 2 divisors, whose sum is σ = 505910509100. Its totient is φ = 505910509098.

The previous prime is 505910509079. The next prime is 505910509103. The reversal of 505910509099 is 990905019505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505910509099 - 2⁵ = 505910509067 is a prime.

It is not a weakly prime, because it can be changed into another prime (505910509079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252955254549 + 252955254550.

It is an arithmetic number, because the mean of its divisors is an integer number (252955254550).

Almost surely, 2^505910509099 is an apocalyptic number.

505910509099 is a deficient number, since it is larger than the sum of its proper divisors (1).

505910509099 is an equidigital number, since it uses as much as digits as its factorization.

505910509099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 820125, while the sum is 52.

The spelling of 505910509099 in words is "five hundred five billion, nine hundred ten million, five hundred nine thousand, ninety-nine".