223555441 has 2 divisors, whose sum is σ = 223555442. Its totient is φ = 223555440.

The previous prime is 223555439. The next prime is 223555447. The reversal of 223555441 is 144555322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190550416 + 33005025 = 13804^2 + 5745^2 .

It is a cyclic number.

It is not a de Polignac number, because 223555441 - 2¹ = 223555439 is a prime.

Together with 223555439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (223555447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111777720 + 111777721.

It is an arithmetic number, because the mean of its divisors is an integer number (111777721).

Almost surely, 2^223555441 is an apocalyptic number.

It is an amenable number.

223555441 is a deficient number, since it is larger than the sum of its proper divisors (1).

223555441 is an equidigital number, since it uses as much as digits as its factorization.

223555441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24000, while the sum is 31.

The square root of 223555441 is about 14951.7704971686. The cubic root of 223555441 is about 606.9157595560.

The spelling of 223555441 in words is "two hundred twenty-three million, five hundred fifty-five thousand, four hundred forty-one".