223055489 has 2 divisors, whose sum is σ = 223055490. Its totient is φ = 223055488.

The previous prime is 223055471. The next prime is 223055519. The reversal of 223055489 is 984550322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164685889 + 58369600 = 12833^2 + 7640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223055489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (223051489) 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, 111527744 + 111527745.

It is an arithmetic number, because the mean of its divisors is an integer number (111527745).

Almost surely, 2^223055489 is an apocalyptic number.

It is an amenable number.

223055489 is a deficient number, since it is larger than the sum of its proper divisors (1).

223055489 is an equidigital number, since it uses as much as digits as its factorization.

223055489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 223055489 is about 14935.0423166458. The cubic root of 223055489 is about 606.4629930885.

The spelling of 223055489 in words is "two hundred twenty-three million, fifty-five thousand, four hundred eighty-nine".