223057217 has 4 divisors (see below), whose sum is σ = 223565760. Its totient is φ = 222548676.

The previous prime is 223057193. The next prime is 223057277. The reversal of 223057217 is 712750322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223057217 - 2¹⁸ = 222795073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223057217.

It is not an unprimeable number, because it can be changed into a prime (223057277) 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 in 3 ways as a sum of consecutive naturals, for example, 253613 + ... + 254490.

It is an arithmetic number, because the mean of its divisors is an integer number (55891440).

Almost surely, 2^223057217 is an apocalyptic number.

It is an amenable number.

223057217 is a deficient number, since it is larger than the sum of its proper divisors (508543).

223057217 is an equidigital number, since it uses as much as digits as its factorization.

223057217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508542.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 223057217 is about 14935.1001670561. The cubic root of 223057217 is about 606.4645591642.

The spelling of 223057217 in words is "two hundred twenty-three million, fifty-seven thousand, two hundred seventeen".