561602219 has 2 divisors, whose sum is σ = 561602220. Its totient is φ = 561602218.

The previous prime is 561602207. The next prime is 561602221. The reversal of 561602219 is 912206165.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561602219 is a prime.

It is a super-2 number, since 2×561602219² = 630794104771447922, which contains 22 as substring.

Together with 561602221, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (561602519) 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, 280801109 + 280801110.

It is an arithmetic number, because the mean of its divisors is an integer number (280801110).

Almost surely, 2^561602219 is an apocalyptic number.

561602219 is a deficient number, since it is larger than the sum of its proper divisors (1).

561602219 is an equidigital number, since it uses as much as digits as its factorization.

561602219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 561602219 is about 23698.1480078085. The cubic root of 561602219 is about 825.0424068805.

The spelling of 561602219 in words is "five hundred sixty-one million, six hundred two thousand, two hundred nineteen".