505055555005 has 4 divisors (see below), whose sum is σ = 606066666012. Its totient is φ = 404044444000.

The previous prime is 505055554999. The next prime is 505055555009. The reversal of 505055555005 is 500555550505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76738972324 + 428316582681 = 277018^2 + 654459^2 .

It is not a de Polignac number, because 505055555005 - 2⁵ = 505055554973 is a prime.

It is a super-2 number, since 2×505055555005² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505055555009) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 50505555496 + ... + 50505555505.

It is an arithmetic number, because the mean of its divisors is an integer number (151516666503).

Almost surely, 2^505055555005 is an apocalyptic number.

It is an amenable number.

505055555005 is a deficient number, since it is larger than the sum of its proper divisors (101011111007).

505055555005 is a wasteful number, since it uses less digits than its factorization.

505055555005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101011111006.

The product of its (nonzero) digits is 390625, while the sum is 40.

The spelling of 505055555005 in words is "five hundred five billion, fifty-five million, five hundred fifty-five thousand, five".