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BaseRepresentation
bin100001011100011…
…101111000011100
31110002211100222110
4201130131320130
52122121014211
6131402314020
716622234556
oct4134357034
91402740873
10561110556
11268806736
12137ab8910
138c3306a6
14547424d6
15343d9ea6
hex2171de1c

561110556 has 12 divisors (see below), whose sum is σ = 1309257992. Its totient is φ = 187036848.

The previous prime is 561110521. The next prime is 561110567. The reversal of 561110556 is 655011165.

561110556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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, 23379595 + ... + 23379618.

Almost surely, 2561110556 is an apocalyptic number.

It is an amenable number.

561110556 is an abundant number, since it is smaller than the sum of its proper divisors (748147436).

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

561110556 is a wasteful number, since it uses less digits than its factorization.

561110556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46759220 (or 46759218 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 561110556 is about 23687.7722886725. The cubic root of 561110556 is about 824.8015713780.

The spelling of 561110556 in words is "five hundred sixty-one million, one hundred ten thousand, five hundred fifty-six".