505534222521556 has 12 divisors (see below), whose sum is σ = 884685123093492. Its totient is φ = 252767044494848.

The previous prime is 505534222521553. The next prime is 505534222521611. The reversal of 505534222521556 is 655125222435505.

It can be written as a sum of positive squares in 2 ways, for example, as 45529700904900 + 460004521616656 = 6747570^2 + 21447716^2 .

It is a super-3 number, since 3×505534222521556³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505534222521553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2899956 + ... + 31929268.

It is an arithmetic number, because the mean of its divisors is an integer number (73723760257791).

Almost surely, 2^{505534222521556} is an apocalyptic number.

It is an amenable number.

505534222521556 is a deficient number, since it is larger than the sum of its proper divisors (379150900571936).

505534222521556 is a wasteful number, since it uses less digits than its factorization.

505534222521556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33382970 (or 33382968 counting only the distinct ones).

The product of its (nonzero) digits is 18000000, while the sum is 52.

The spelling of 505534222521556 in words is "five hundred five trillion, five hundred thirty-four billion, two hundred twenty-two million, five hundred twenty-one thousand, five hundred fifty-six".