211016653 has 2 divisors, whose sum is σ = 211016654. Its totient is φ = 211016652.

The previous prime is 211016633. The next prime is 211016657. The reversal of 211016653 is 356610112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191462569 + 19554084 = 13837^2 + 4422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211016653 is a prime.

It is equal to p_11654521 and since 211016653 and 11654521 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211016657) 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, 105508326 + 105508327.

It is an arithmetic number, because the mean of its divisors is an integer number (105508327).

Almost surely, 2^211016653 is an apocalyptic number.

It is an amenable number.

211016653 is a deficient number, since it is larger than the sum of its proper divisors (1).

211016653 is an equidigital number, since it uses as much as digits as its factorization.

211016653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 211016653 is about 14526.4122549238. The cubic root of 211016653 is about 595.3498429874.

Adding to 211016653 its reverse (356610112), we get a palindrome (567626765).

The spelling of 211016653 in words is "two hundred eleven million, sixteen thousand, six hundred fifty-three".