223223551 has 2 divisors, whose sum is σ = 223223552. Its totient is φ = 223223550.

The previous prime is 223223537. The next prime is 223223563. The reversal of 223223551 is 155322322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223223551 - 2¹¹ = 223221503 is a prime.

It is a super-3 number, since 3×223223551³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223220551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111611775 + 111611776.

It is an arithmetic number, because the mean of its divisors is an integer number (111611776).

Almost surely, 2^223223551 is an apocalyptic number.

223223551 is a deficient number, since it is larger than the sum of its proper divisors (1).

223223551 is an equidigital number, since it uses as much as digits as its factorization.

223223551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 25.

The square root of 223223551 is about 14940.6676892300. The cubic root of 223223551 is about 606.6152687943.

Adding to 223223551 its reverse (155322322), we get a palindrome (378545873).

The spelling of 223223551 in words is "two hundred twenty-three million, two hundred twenty-three thousand, five hundred fifty-one".