6555223 has 2 divisors, whose sum is σ = 6555224. Its totient is φ = 6555222.

The previous prime is 6555173. The next prime is 6555233. The reversal of 6555223 is 3225556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6555223 - 2¹³ = 6547031 is a prime.

6555223 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6555191 and 6555200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6555233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277611 + 3277612.

It is an arithmetic number, because the mean of its divisors is an integer number (3277612).

Almost surely, 2^6555223 is an apocalyptic number.

6555223 is a deficient number, since it is larger than the sum of its proper divisors (1).

6555223 is an equidigital number, since it uses as much as digits as its factorization.

6555223 is an evil number, because the sum of its binary digits is even.

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

The square root of 6555223 is about 2560.3169725641. The cubic root of 6555223 is about 187.1525821502.

The spelling of 6555223 in words is "six million, five hundred fifty-five thousand, two hundred twenty-three".