655211 has 2 divisors, whose sum is σ = 655212. Its totient is φ = 655210.

The previous prime is 655181. The next prime is 655219. The reversal of 655211 is 112556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655211 - 2¹⁰ = 654187 is a prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (655219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327605 + 327606.

It is an arithmetic number, because the mean of its divisors is an integer number (327606).

2⁶⁵⁵²¹¹ is an apocalyptic number.

655211 is a deficient number, since it is larger than the sum of its proper divisors (1).

655211 is an equidigital number, since it uses as much as digits as its factorization.

655211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 300, while the sum is 20.

The square root of 655211 is about 809.4510485508. The cubic root of 655211 is about 86.8547804159.

Adding to 655211 its reverse (112556), we get a palindrome (767767).

The spelling of 655211 in words is "six hundred fifty-five thousand, two hundred eleven".