561224117 has 2 divisors, whose sum is σ = 561224118. Its totient is φ = 561224116.

The previous prime is 561224057. The next prime is 561224119. The reversal of 561224117 is 711422165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 512977201 + 48246916 = 22649^2 + 6946^2 .

It is a cyclic number.

It is not a de Polignac number, because 561224117 - 2¹⁴ = 561207733 is a prime.

Together with 561224119, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 561224117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561224119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280612058 + 280612059.

It is an arithmetic number, because the mean of its divisors is an integer number (280612059).

Almost surely, 2^561224117 is an apocalyptic number.

It is an amenable number.

561224117 is a deficient number, since it is larger than the sum of its proper divisors (1).

561224117 is an equidigital number, since it uses as much as digits as its factorization.

561224117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 29.

The square root of 561224117 is about 23690.1692058119. The cubic root of 561224117 is about 824.8572104269.

The spelling of 561224117 in words is "five hundred sixty-one million, two hundred twenty-four thousand, one hundred seventeen".