561060556 has 24 divisors (see below), whose sum is σ = 1123001600. Its totient is φ = 240265872.

The previous prime is 561060547. The next prime is 561060587. The reversal of 561060556 is 655060165.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32011 + ... + 46333.

Almost surely, 2^561060556 is an apocalyptic number.

It is an amenable number.

561060556 is an abundant number, since it is smaller than the sum of its proper divisors (561941044).

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

561060556 is a wasteful number, since it uses less digits than its factorization.

561060556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15733 (or 15731 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 561060556 is about 23686.7168683209. The cubic root of 561060556 is about 824.7770715694. Note that the first 3 decimals are identical.

It can be divided in two parts, 5610 and 60556, that added together give a palindrome (66166).

The spelling of 561060556 in words is "five hundred sixty-one million, sixty thousand, five hundred fifty-six".