561882516 has 96 divisors (see below), whose sum is σ = 1496624640. Its totient is φ = 162642816.

The previous prime is 561882473. The next prime is 561882551. The reversal of 561882516 is 615288165.

561882516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 482551 + ... + 483713.

It is an arithmetic number, because the mean of its divisors is an integer number (15589840).

Almost surely, 2^561882516 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 561882516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748312320).

561882516 is an abundant number, since it is smaller than the sum of its proper divisors (934742124).

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

561882516 is a wasteful number, since it uses less digits than its factorization.

561882516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365 (or 1363 counting only the distinct ones).

The product of its digits is 115200, while the sum is 42.

The square root of 561882516 is about 23704.0611710314. The cubic root of 561882516 is about 825.1796442588.

The spelling of 561882516 in words is "five hundred sixty-one million, eight hundred eighty-two thousand, five hundred sixteen".