505305250055 has 12 divisors (see below), whose sum is σ = 620795796120. Its totient is φ = 394843164912.

The previous prime is 505305250039. The next prime is 505305250061. The reversal of 505305250055 is 550052503505.

It is not a de Polignac number, because 505305250055 - 2⁴ = 505305250039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505305249997 and 505305250024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27319325 + ... + 27337814.

It is an arithmetic number, because the mean of its divisors is an integer number (51732983010).

Almost surely, 2^505305250055 is an apocalyptic number.

505305250055 is a deficient number, since it is larger than the sum of its proper divisors (115490546065).

505305250055 is an equidigital number, since it uses as much as digits as its factorization.

505305250055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54657230 (or 54657187 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 35.

The spelling of 505305250055 in words is "five hundred five billion, three hundred five million, two hundred fifty thousand, fifty-five".