561100110 has 16 divisors (see below), whose sum is σ = 1346640336. Its totient is φ = 149626688.

The previous prime is 561100109. The next prime is 561100139. The reversal of 561100110 is 11001165.

561100110 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 (15).

It is a self number, because there is not a number n which added to its sum of digits gives 561100110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9351639 + ... + 9351698.

It is an arithmetic number, because the mean of its divisors is an integer number (84165021).

Almost surely, 2^561100110 is an apocalyptic number.

561100110 is an abundant number, since it is smaller than the sum of its proper divisors (785540226).

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

561100110 is a wasteful number, since it uses less digits than its factorization.

561100110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18703347.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 561100110 is about 23687.5517941386. The cubic root of 561100110 is about 824.7964529982.

Adding to 561100110 its reverse (11001165), we get a palindrome (572101275).

The spelling of 561100110 in words is "five hundred sixty-one million, one hundred thousand, one hundred ten".