561653612 has 12 divisors (see below), whose sum is σ = 1058501136. Its totient is φ = 259224720.

The previous prime is 561653611. The next prime is 561653639. The reversal of 561653612 is 216356165.

561653612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (561653611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5400464 + ... + 5400567.

It is an arithmetic number, because the mean of its divisors is an integer number (88208428).

Almost surely, 2^561653612 is an apocalyptic number.

561653612 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

561653612 is a deficient number, since it is larger than the sum of its proper divisors (496847524).

561653612 is a wasteful number, since it uses less digits than its factorization.

561653612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10801048 (or 10801046 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The square root of 561653612 is about 23699.2323082415. The cubic root of 561653612 is about 825.0675730388.

It can be divided in two parts, 561653 and 612, that added together give a palindrome (562265).

The spelling of 561653612 in words is "five hundred sixty-one million, six hundred fifty-three thousand, six hundred twelve".