505555005004 is an admirable number.
It is an unprimeable number.
Almost surely, 2505555005004 is an apocalyptic number.
It is an amenable number.
505555005004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
505555005004 is a wasteful number, since it uses less digits than its factorization.
505555005004 is an evil number, because the sum of its binary digits is even.
The spelling of 505555005004 in words is "five hundred five billion, five hundred fifty-five million, five thousand, four".