561771104 has 12 divisors (see below), whose sum is σ = 1105986924. Its totient is φ = 280885536.

The previous prime is 561771101. The next prime is 561771109. The reversal of 561771104 is 401177165.

561771104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 17555347 = 561771104 / (5 + 6 + 1 + 7 + 7 + 1 + 1 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561771101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8777642 + ... + 8777705.

It is an arithmetic number, because the mean of its divisors is an integer number (92165577).

Almost surely, 2^561771104 is an apocalyptic number.

It is an amenable number.

561771104 is a deficient number, since it is larger than the sum of its proper divisors (544215820).

561771104 is a wasteful number, since it uses less digits than its factorization.

561771104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17555357 (or 17555349 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 561771104 is about 23701.7109930908. The cubic root of 561771104 is about 825.1251008332.

The spelling of 561771104 in words is "five hundred sixty-one million, seven hundred seventy-one thousand, one hundred four".