655223 has 2 divisors, whose sum is σ = 655224. Its totient is φ = 655222.

The previous prime is 655219. The next prime is 655229. The reversal of 655223 is 322556.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 655223 - 2² = 655219 is a prime.

It is a d-powerful number, because it can be written as 6 + 5 + 2⁸ + 5⁸ + 2¹⁸ + 3⁷ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327611 + 327612.

It is an arithmetic number, because the mean of its divisors is an integer number (327612).

2⁶⁵⁵²²³ is an apocalyptic number.

655223 is a deficient number, since it is larger than the sum of its proper divisors (1).

655223 is an equidigital number, since it uses as much as digits as its factorization.

655223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 23.

The square root of 655223 is about 809.4584609478. The cubic root of 655223 is about 86.8553106528.

Adding to 655223 its reverse (322556), we get a palindrome (977779).

It can be divided in two parts, 655 and 223, that added together give a palindrome (878).

The spelling of 655223 in words is "six hundred fifty-five thousand, two hundred twenty-three".