561022016 has 14 divisors (see below), whose sum is σ = 1113278190. Its totient is φ = 280510976.

The previous prime is 561021961. The next prime is 561022027. The reversal of 561022016 is 610220165.

It can be written as a sum of positive squares in only one way, i.e., 542703616 + 18318400 = 23296^2 + 4280^2 .

It is a junction number, because it is equal to n+sod(n) for n = 561021982 and 561022000.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4382921 + ... + 4383048.

Almost surely, 2^561022016 is an apocalyptic number.

It is an amenable number.

561022016 is a deficient number, since it is larger than the sum of its proper divisors (552256174).

561022016 is an equidigital number, since it uses as much as digits as its factorization.

561022016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8765981 (or 8765971 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 561022016 is about 23685.9033182186. The cubic root of 561022016 is about 824.7581861236.

The spelling of 561022016 in words is "five hundred sixty-one million, twenty-two thousand, sixteen".