655452211 has 2 divisors, whose sum is σ = 655452212. Its totient is φ = 655452210.

The previous prime is 655452197. The next prime is 655452233. The reversal of 655452211 is 112254556.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655452211 is a prime.

It is not a weakly prime, because it can be changed into another prime (655456211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327726105 + 327726106.

It is an arithmetic number, because the mean of its divisors is an integer number (327726106).

Almost surely, 2^655452211 is an apocalyptic number.

655452211 is a deficient number, since it is larger than the sum of its proper divisors (1).

655452211 is an equidigital number, since it uses as much as digits as its factorization.

655452211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 31.

The square root of 655452211 is about 25601.8009327469. The cubic root of 655452211 is about 868.6543741959.

The spelling of 655452211 in words is "six hundred fifty-five million, four hundred fifty-two thousand, two hundred eleven".