505505305255 has 16 divisors (see below), whose sum is σ = 607899061440. Its totient is φ = 403542715392.

The previous prime is 505505305243. The next prime is 505505305303. The reversal of 505505305255 is 552503505505.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 505505305255 - 2³³ = 496915370663 is a prime.

It is a super-2 number, since 2×505505305255² (a number of 24 digits) contains 22 as substring.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 20161687 + ... + 20186743.

It is an arithmetic number, because the mean of its divisors is an integer number (37993691340).

Almost surely, 2^505505305255 is an apocalyptic number.

505505305255 is a deficient number, since it is larger than the sum of its proper divisors (102393756185).

505505305255 is a wasteful number, since it uses less digits than its factorization.

505505305255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33498.

The product of its (nonzero) digits is 468750, while the sum is 40.

The spelling of 505505305255 in words is "five hundred five billion, five hundred five million, three hundred five thousand, two hundred fifty-five".