505305050555 has 24 divisors (see below), whose sum is σ = 611973546912. Its totient is φ = 400536347904.

The previous prime is 505305050473. The next prime is 505305050563. The reversal of 505305050555 is 555050503505.

It is a de Polignac number, because none of the positive numbers 2^k-505305050555 is a prime.

It is a super-2 number, since 2×505305050555² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 44763122 + ... + 44774408.

It is an arithmetic number, because the mean of its divisors is an integer number (25498897788).

Almost surely, 2^505305050555 is an apocalyptic number.

505305050555 is a deficient number, since it is larger than the sum of its proper divisors (106668496357).

505305050555 is a wasteful number, since it uses less digits than its factorization.

505305050555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11955 (or 11792 counting only the distinct ones).

The product of its (nonzero) digits is 234375, while the sum is 38.

The spelling of 505305050555 in words is "five hundred five billion, three hundred five million, fifty thousand, five hundred fifty-five".