223233455 has 4 divisors (see below), whose sum is σ = 267880152. Its totient is φ = 178586760.

The previous prime is 223233431. The next prime is 223233457. The reversal of 223233455 is 554332322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 554332322 = 2 ⋅277166161.

It is not a de Polignac number, because 223233455 - 2¹⁰ = 223232431 is a prime.

It is a super-3 number, since 3×223233455³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223233457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22323341 + ... + 22323350.

It is an arithmetic number, because the mean of its divisors is an integer number (66970038).

Almost surely, 2^223233455 is an apocalyptic number.

223233455 is a deficient number, since it is larger than the sum of its proper divisors (44646697).

223233455 is an equidigital number, since it uses as much as digits as its factorization.

223233455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44646696.

The product of its digits is 21600, while the sum is 29.

The square root of 223233455 is about 14940.9991299110. Note that the first 3 decimals coincide. The cubic root of 223233455 is about 606.6242401129.

Adding to 223233455 its reverse (554332322), we get a palindrome (777565777).

The spelling of 223233455 in words is "two hundred twenty-three million, two hundred thirty-three thousand, four hundred fifty-five".