561936067 has 24 divisors (see below), whose sum is σ = 717994800. Its totient is φ = 434871360.

The previous prime is 561936061. The next prime is 561936079. The reversal of 561936067 is 760639165.

It is not a de Polignac number, because 561936067 - 2⁷ = 561935939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561936061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76813 + ... + 83809.

It is an arithmetic number, because the mean of its divisors is an integer number (29916450).

Almost surely, 2^561936067 is an apocalyptic number.

561936067 is a deficient number, since it is larger than the sum of its proper divisors (156058733).

561936067 is a wasteful number, since it uses less digits than its factorization.

561936067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7171 (or 7164 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 561936067 is about 23705.1907184903. The cubic root of 561936067 is about 825.2058583932.

The spelling of 561936067 in words is "five hundred sixty-one million, nine hundred thirty-six thousand, sixty-seven".