505005555055 has 4 divisors (see below), whose sum is σ = 606006666072. Its totient is φ = 404004444040.

The previous prime is 505005555037. The next prime is 505005555133. The reversal of 505005555055 is 550555500505.

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

It is not a de Polignac number, because 505005555055 - 2³⁵ = 470645816687 is a prime.

It is a super-2 number, since 2×505005555055² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505005554999 and 505005555017.

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, 50500555501 + ... + 50500555510.

It is an arithmetic number, because the mean of its divisors is an integer number (151501666518).

Almost surely, 2^505005555055 is an apocalyptic number.

505005555055 is a deficient number, since it is larger than the sum of its proper divisors (101001111017).

505005555055 is a wasteful number, since it uses less digits than its factorization.

505005555055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101001111016.

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

The spelling of 505005555055 in words is "five hundred five billion, five million, five hundred fifty-five thousand, fifty-five".