211552163 has 2 divisors, whose sum is σ = 211552164. Its totient is φ = 211552162.

The previous prime is 211552151. The next prime is 211552177. The reversal of 211552163 is 361255112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211552163 - 2⁴ = 211552147 is a prime.

It is not a weakly prime, because it can be changed into another prime (211555163) 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, 105776081 + 105776082.

It is an arithmetic number, because the mean of its divisors is an integer number (105776082).

Almost surely, 2^211552163 is an apocalyptic number.

211552163 is a deficient number, since it is larger than the sum of its proper divisors (1).

211552163 is an equidigital number, since it uses as much as digits as its factorization.

211552163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 26.

The square root of 211552163 is about 14544.8328625667. The cubic root of 211552163 is about 595.8530362609.

The spelling of 211552163 in words is "two hundred eleven million, five hundred fifty-two thousand, one hundred sixty-three".