505305530556 has 24 divisors (see below), whose sum is σ = 1241101303680. Its totient is φ = 159570167472.

The previous prime is 505305530549. The next prime is 505305530573. The reversal of 505305530556 is 655035503505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1108125936 + ... + 1108126391.

It is an arithmetic number, because the mean of its divisors is an integer number (51712554320).

Almost surely, 2^505305530556 is an apocalyptic number.

It is an amenable number.

505305530556 is an abundant number, since it is smaller than the sum of its proper divisors (735795773124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505305530556 is a wasteful number, since it uses less digits than its factorization.

505305530556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216252353 (or 2216252351 counting only the distinct ones).

The product of its (nonzero) digits is 843750, while the sum is 42.

The spelling of 505305530556 in words is "five hundred five billion, three hundred five million, five hundred thirty thousand, five hundred fifty-six".