211206053 has 2 divisors, whose sum is σ = 211206054. Its totient is φ = 211206052.

The previous prime is 211205993. The next prime is 211206091. The reversal of 211206053 is 350602112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210192004 + 1014049 = 14498^2 + 1007^2 .

It is a cyclic number.

It is not a de Polignac number, because 211206053 - 2¹⁴ = 211189669 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211206353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105603026 + 105603027.

It is an arithmetic number, because the mean of its divisors is an integer number (105603027).

Almost surely, 2^211206053 is an apocalyptic number.

It is an amenable number.

211206053 is a deficient number, since it is larger than the sum of its proper divisors (1).

211206053 is an equidigital number, since it uses as much as digits as its factorization.

211206053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 211206053 is about 14532.9299523530. The cubic root of 211206053 is about 595.5279103570.

Adding to 211206053 its reverse (350602112), we get a palindrome (561808165).

The spelling of 211206053 in words is "two hundred eleven million, two hundred six thousand, fifty-three".