224000561 has 2 divisors, whose sum is σ = 224000562. Its totient is φ = 224000560.

The previous prime is 224000531. The next prime is 224000587. The reversal of 224000561 is 165000422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161290000 + 62710561 = 12700^2 + 7919^2 .

It is a cyclic number.

It is not a de Polignac number, because 224000561 - 2¹⁰ = 223999537 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (224000531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112000280 + 112000281.

It is an arithmetic number, because the mean of its divisors is an integer number (112000281).

Almost surely, 2^224000561 is an apocalyptic number.

It is an amenable number.

224000561 is a deficient number, since it is larger than the sum of its proper divisors (1).

224000561 is an equidigital number, since it uses as much as digits as its factorization.

224000561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 224000561 is about 14966.6482887786. The cubic root of 224000561 is about 607.3183013766.

Adding to 224000561 its reverse (165000422), we get a palindrome (389000983).

The spelling of 224000561 in words is "two hundred twenty-four million, five hundred sixty-one", and thus it is an aban number.