211532525235217 has 2 divisors, whose sum is σ = 211532525235218. Its totient is φ = 211532525235216.

The previous prime is 211532525235077. The next prime is 211532525235253. The reversal of 211532525235217 is 712532525235112.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187915734231696 + 23616791003521 = 13708236^2 + 4859711^2 .

It is a cyclic number.

It is not a de Polignac number, because 211532525235217 - 2³¹ = 211530377751569 is a prime.

It is not a weakly prime, because it can be changed into another prime (211532525235917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105766262617608 + 105766262617609.

It is an arithmetic number, because the mean of its divisors is an integer number (105766262617609).

Almost surely, 2^{211532525235217} is an apocalyptic number.

It is an amenable number.

211532525235217 is a deficient number, since it is larger than the sum of its proper divisors (1).

211532525235217 is an equidigital number, since it uses as much as digits as its factorization.

211532525235217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260000, while the sum is 46.

The spelling of 211532525235217 in words is "two hundred eleven trillion, five hundred thirty-two billion, five hundred twenty-five million, two hundred thirty-five thousand, two hundred seventeen".