560565881 has 2 divisors, whose sum is σ = 560565882. Its totient is φ = 560565880.

The previous prime is 560565847. The next prime is 560565883. The reversal of 560565881 is 188565065.

560565881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 367105600 + 193460281 = 19160^2 + 13909^2 .

It is a cyclic number.

It is not a de Polignac number, because 560565881 - 2²² = 556371577 is a prime.

It is a super-2 number, since 2×560565881² = 628468213882612322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 560565883, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (560565883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280282940 + 280282941.

It is an arithmetic number, because the mean of its divisors is an integer number (280282941).

Almost surely, 2^560565881 is an apocalyptic number.

560565881 is the 12656-th centered heptagonal number.

It is an amenable number.

560565881 is a deficient number, since it is larger than the sum of its proper divisors (1).

560565881 is an equidigital number, since it uses as much as digits as its factorization.

560565881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 44.

The square root of 560565881 is about 23676.2725317986. The cubic root of 560565881 is about 824.5346042400.

The spelling of 560565881 in words is "five hundred sixty million, five hundred sixty-five thousand, eight hundred eighty-one".