561669301 has 2 divisors, whose sum is σ = 561669302. Its totient is φ = 561669300.

The previous prime is 561669271. The next prime is 561669319. The reversal of 561669301 is 103966165.

561669301 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., 547606801 + 14062500 = 23401^2 + 3750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561669301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561669391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280834650 + 280834651.

It is an arithmetic number, because the mean of its divisors is an integer number (280834651).

Almost surely, 2^561669301 is an apocalyptic number.

It is an amenable number.

561669301 is a deficient number, since it is larger than the sum of its proper divisors (1).

561669301 is an equidigital number, since it uses as much as digits as its factorization.

561669301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 561669301 is about 23699.5633082131. The cubic root of 561669301 is about 825.0752553328.

The spelling of 561669301 in words is "five hundred sixty-one million, six hundred sixty-nine thousand, three hundred one".