561805606 has 8 divisors (see below), whose sum is σ = 842809680. Its totient is φ = 280869048.

The previous prime is 561805597. The next prime is 561805631. The reversal of 561805606 is 606508165.

561805606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 20340 + ... + 39208.

It is an arithmetic number, because the mean of its divisors is an integer number (105351210).

Almost surely, 2^561805606 is an apocalyptic number.

561805606 is a deficient number, since it is larger than the sum of its proper divisors (281004074).

561805606 is a wasteful number, since it uses less digits than its factorization.

561805606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33758.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 561805606 is about 23702.4388196658. The cubic root of 561805606 is about 825.1419925786.

The spelling of 561805606 in words is "five hundred sixty-one million, eight hundred five thousand, six hundred six".