505005055055 has 4 divisors (see below), whose sum is σ = 606006066072. Its totient is φ = 404004044040.

The previous prime is 505005054971. The next prime is 505005055069. The reversal of 505005055055 is 550550500505.

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

It is not a de Polignac number, because 505005055055 - 2¹⁰ = 505005054031 is a prime.

It is a super-2 number, since 2×505005055055² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50500505501 + ... + 50500505510.

It is an arithmetic number, because the mean of its divisors is an integer number (151501516518).

Almost surely, 2^505005055055 is an apocalyptic number.

505005055055 is a deficient number, since it is larger than the sum of its proper divisors (101001011017).

505005055055 is a wasteful number, since it uses less digits than its factorization.

505005055055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101001011016.

The product of its (nonzero) digits is 78125, while the sum is 35.

The spelling of 505005055055 in words is "five hundred five billion, five million, fifty-five thousand, fifty-five".