211452441553 has 2 divisors, whose sum is σ = 211452441554. Its totient is φ = 211452441552.

The previous prime is 211452441523. The next prime is 211452441559. The reversal of 211452441553 is 355144254112.

211452441553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110564895169 + 100887546384 = 332513^2 + 317628^2 .

It is a cyclic number.

It is not a de Polignac number, because 211452441553 - 2⁹ = 211452441041 is a prime.

It is not a weakly prime, because it can be changed into another prime (211452441559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105726220776 + 105726220777.

It is an arithmetic number, because the mean of its divisors is an integer number (105726220777).

Almost surely, 2^211452441553 is an apocalyptic number.

It is an amenable number.

211452441553 is a deficient number, since it is larger than the sum of its proper divisors (1).

211452441553 is an equidigital number, since it uses as much as digits as its factorization.

211452441553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96000, while the sum is 37.

Adding to 211452441553 its reverse (355144254112), we get a palindrome (566596695665).

The spelling of 211452441553 in words is "two hundred eleven billion, four hundred fifty-two million, four hundred forty-one thousand, five hundred fifty-three".