561116832 has 96 divisors (see below), whose sum is σ = 1569964032. Its totient is φ = 175067904.

The previous prime is 561116789. The next prime is 561116867. The reversal of 561116832 is 238611165.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 561116793 and 561116802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101073 + ... + 106479.

It is an arithmetic number, because the mean of its divisors is an integer number (16353792).

Almost surely, 2^561116832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561116832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (784982016).

561116832 is an abundant number, since it is smaller than the sum of its proper divisors (1008847200).

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

561116832 is a wasteful number, since it uses less digits than its factorization.

561116832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5490 (or 5482 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 561116832 is about 23687.9047617133. The cubic root of 561116832 is about 824.8046464911.

Adding to 561116832 its reverse (238611165), we get a palindrome (799727997).

The spelling of 561116832 in words is "five hundred sixty-one million, one hundred sixteen thousand, eight hundred thirty-two".