224563561 has 2 divisors, whose sum is σ = 224563562. Its totient is φ = 224563560.

The previous prime is 224563543. The next prime is 224563567. The reversal of 224563561 is 165365422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173712400 + 50851161 = 13180^2 + 7131^2 .

It is a cyclic number.

It is not a de Polignac number, because 224563561 - 2⁵ = 224563529 is a prime.

It is not a weakly prime, because it can be changed into another prime (224563567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112281780 + 112281781.

It is an arithmetic number, because the mean of its divisors is an integer number (112281781).

Almost surely, 2^224563561 is an apocalyptic number.

It is an amenable number.

224563561 is a deficient number, since it is larger than the sum of its proper divisors (1).

224563561 is an equidigital number, since it uses as much as digits as its factorization.

224563561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 34.

The square root of 224563561 is about 14985.4449717050. Note that the first 3 decimals coincide. The cubic root of 224563561 is about 607.8266842459.

The spelling of 224563561 in words is "two hundred twenty-four million, five hundred sixty-three thousand, five hundred sixty-one".