561224369 has 2 divisors, whose sum is σ = 561224370. Its totient is φ = 561224368.

The previous prime is 561224353. The next prime is 561224381. The reversal of 561224369 is 963422165.

561224369 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., 367680625 + 193543744 = 19175^2 + 13912^2 .

It is a cyclic number.

It is not a de Polignac number, because 561224369 - 2⁴ = 561224353 is a prime.

It is a super-2 number, since 2×561224369² = 629945584718896322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (561224329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280612184 + 280612185.

It is an arithmetic number, because the mean of its divisors is an integer number (280612185).

Almost surely, 2^561224369 is an apocalyptic number.

It is an amenable number.

561224369 is a deficient number, since it is larger than the sum of its proper divisors (1).

561224369 is an equidigital number, since it uses as much as digits as its factorization.

561224369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 38.

The square root of 561224369 is about 23690.1745244732. The cubic root of 561224369 is about 824.8573338856.

The spelling of 561224369 in words is "five hundred sixty-one million, two hundred twenty-four thousand, three hundred sixty-nine".