561543608 has 8 divisors (see below), whose sum is σ = 1052894280. Its totient is φ = 280771800.

The previous prime is 561543607. The next prime is 561543611. The reversal of 561543608 is 806345165.

561543608 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 (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561543607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35096468 + ... + 35096483.

It is an arithmetic number, because the mean of its divisors is an integer number (131611785).

Almost surely, 2^561543608 is an apocalyptic number.

It is an amenable number.

561543608 is a deficient number, since it is larger than the sum of its proper divisors (491350672).

561543608 is a wasteful number, since it uses less digits than its factorization.

561543608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70192957 (or 70192953 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 561543608 is about 23696.9113599220. The cubic root of 561543608 is about 825.0137043331.

The spelling of 561543608 in words is "five hundred sixty-one million, five hundred forty-three thousand, six hundred eight".