223055605 has 4 divisors (see below), whose sum is σ = 267666732. Its totient is φ = 178444480.

The previous prime is 223055597. The next prime is 223055629. The reversal of 223055605 is 506550322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 506550322 = 2 ⋅253275161.

It can be written as a sum of positive squares in 2 ways, for example, as 55249489 + 167806116 = 7433^2 + 12954^2 .

It is not a de Polignac number, because 223055605 - 2³ = 223055597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22305556 + ... + 22305565.

It is an arithmetic number, because the mean of its divisors is an integer number (66916683).

Almost surely, 2^223055605 is an apocalyptic number.

It is an amenable number.

223055605 is a deficient number, since it is larger than the sum of its proper divisors (44611127).

223055605 is an equidigital number, since it uses as much as digits as its factorization.

223055605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44611126.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 223055605 is about 14935.0462001294. The cubic root of 223055605 is about 606.4630982188.

The spelling of 223055605 in words is "two hundred twenty-three million, fifty-five thousand, six hundred five".