561622036 has 12 divisors (see below), whose sum is σ = 984860128. Its totient is φ = 280233432.

The previous prime is 561621989. The next prime is 561622051. The reversal of 561622036 is 630226165.

It is a super-2 number, since 2×561622036² = 630838622641570592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 561621989 and 561622007.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 142206 + ... + 146101.

Almost surely, 2^561622036 is an apocalyptic number.

It is an amenable number.

561622036 is a deficient number, since it is larger than the sum of its proper divisors (423238092).

561622036 is a wasteful number, since it uses less digits than its factorization.

561622036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288798 (or 288796 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 561622036 is about 23698.5661169616. The cubic root of 561622036 is about 825.0521110640.

The spelling of 561622036 in words is "five hundred sixty-one million, six hundred twenty-two thousand, thirty-six".