561931027 has 8 divisors (see below), whose sum is σ = 642362976. Its totient is φ = 481538112.

The previous prime is 561930989. The next prime is 561931037. The reversal of 561931027 is 720139165.

561931027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561931027 - 2¹¹ = 561928979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561930983 and 561931001.

It is not an unprimeable number, because it can be changed into a prime (561931037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34473 + ... + 48085.

It is an arithmetic number, because the mean of its divisors is an integer number (80295372).

Almost surely, 2^561931027 is an apocalyptic number.

561931027 is a deficient number, since it is larger than the sum of its proper divisors (80431949).

561931027 is a wasteful number, since it uses less digits than its factorization.

561931027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19517.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 561931027 is about 23705.0844124209. The cubic root of 561931027 is about 825.2033912976.

The spelling of 561931027 in words is "five hundred sixty-one million, nine hundred thirty-one thousand, twenty-seven".