561571606 has 16 divisors (see below), whose sum is σ = 852894000. Its totient is φ = 277286400.

The previous prime is 561571601. The next prime is 561571691. The reversal of 561571606 is 606175165.

561571606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561571601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93906 + ... + 99706.

It is an arithmetic number, because the mean of its divisors is an integer number (53305875).

Almost surely, 2^561571606 is an apocalyptic number.

561571606 is a deficient number, since it is larger than the sum of its proper divisors (291322394).

561571606 is a wasteful number, since it uses less digits than its factorization.

561571606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6399.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 561571606 is about 23697.5021046523. The cubic root of 561571606 is about 825.0274155567.

The spelling of 561571606 in words is "five hundred sixty-one million, five hundred seventy-one thousand, six hundred six".