561113612 has 24 divisors (see below), whose sum is σ = 1025509632. Its totient is φ = 268131600.

The previous prime is 561113593. The next prime is 561113617. The reversal of 561113612 is 216311165.

It is not an unprimeable number, because it can be changed into a prime (561113617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166787 + ... + 170117.

It is an arithmetic number, because the mean of its divisors is an integer number (42729568).

Almost surely, 2^561113612 is an apocalyptic number.

It is an amenable number.

561113612 is a deficient number, since it is larger than the sum of its proper divisors (464396020).

561113612 is a wasteful number, since it uses less digits than its factorization.

561113612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5189 (or 5187 counting only the distinct ones).

The product of its digits is 1080, while the sum is 26.

The square root of 561113612 is about 23687.8367944395. The cubic root of 561113612 is about 824.8030687591.

Adding to 561113612 its reverse (216311165), we get a palindrome (777424777).

The spelling of 561113612 in words is "five hundred sixty-one million, one hundred thirteen thousand, six hundred twelve".