561959794 has 16 divisors (see below), whose sum is σ = 920102976. Its totient is φ = 255288400.

The previous prime is 561959791. The next prime is 561959809. The reversal of 561959794 is 497959165.

It is not an unprimeable number, because it can be changed into a prime (561959791) 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 7 ways as a sum of consecutive naturals, for example, 37539 + ... + 50329.

It is an arithmetic number, because the mean of its divisors is an integer number (57506436).

Almost surely, 2^561959794 is an apocalyptic number.

561959794 is a deficient number, since it is larger than the sum of its proper divisors (358143182).

561959794 is a wasteful number, since it uses less digits than its factorization.

561959794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14801.

The product of its digits is 3061800, while the sum is 55.

The square root of 561959794 is about 23705.6911732183. The cubic root of 561959794 is about 825.2174726348.

The spelling of 561959794 in words is "five hundred sixty-one million, nine hundred fifty-nine thousand, seven hundred ninety-four".