551005610556 has 24 divisors (see below), whose sum is σ = 1301954187520. Its totient is φ = 181343618352.

The previous prime is 551005610549. The next prime is 551005610587. The reversal of 551005610556 is 655016500155.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290613826 + ... + 290615721.

Almost surely, 2^551005610556 is an apocalyptic number.

It is an amenable number.

551005610556 is an abundant number, since it is smaller than the sum of its proper divisors (750948576964).

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

551005610556 is a wasteful number, since it uses less digits than its factorization.

551005610556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581229633 (or 581229631 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 551005610556 in words is "five hundred fifty-one billion, five million, six hundred ten thousand, five hundred fifty-six".