561280607 has 2 divisors, whose sum is σ = 561280608. Its totient is φ = 561280606.

The previous prime is 561280597. The next prime is 561280633. The reversal of 561280607 is 706082165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 561280607 - 2⁸ = 561280351 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561280667) 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 as a sum of consecutive naturals, namely, 280640303 + 280640304.

It is an arithmetic number, because the mean of its divisors is an integer number (280640304).

Almost surely, 2^561280607 is an apocalyptic number.

561280607 is a deficient number, since it is larger than the sum of its proper divisors (1).

561280607 is an equidigital number, since it uses as much as digits as its factorization.

561280607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 561280607 is about 23691.3614425174. The cubic root of 561280607 is about 824.8848848260.

The spelling of 561280607 in words is "five hundred sixty-one million, two hundred eighty thousand, six hundred seven".