505005555056 has 20 divisors (see below), whose sum is σ = 1010011111104. Its totient is φ = 244357526400.

The previous prime is 505005555037. The next prime is 505005555133. The reversal of 505005555056 is 650555500505.

505005555056 is an admirable number.

It is a super-2 number, since 2×505005555056² (a number of 24 digits) contains 22 as substring.

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, 509077685 + ... + 509078676.

Almost surely, 2^505005555056 is an apocalyptic number.

It is an amenable number.

505005555056 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.

505005555056 is a wasteful number, since it uses less digits than its factorization.

505005555056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018156400 (or 1018156394 counting only the distinct ones).

The product of its (nonzero) digits is 468750, while the sum is 41.

The spelling of 505005555056 in words is "five hundred five billion, five million, five hundred fifty-five thousand, fifty-six".