211255163153249 has 2 divisors, whose sum is σ = 211255163153250. Its totient is φ = 211255163153248.

The previous prime is 211255163153233. The next prime is 211255163153267. The reversal of 211255163153249 is 942351361552112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199703729565649 + 11551433587600 = 14131657^2 + 3398740^2 .

It is a cyclic number.

It is not a de Polignac number, because 211255163153249 - 2⁴ = 211255163153233 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211255163153197 and 211255163153206.

It is not a weakly prime, because it can be changed into another prime (211255163153149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105627581576624 + 105627581576625.

It is an arithmetic number, because the mean of its divisors is an integer number (105627581576625).

Almost surely, 2^{211255163153249} is an apocalyptic number.

It is an amenable number.

211255163153249 is a deficient number, since it is larger than the sum of its proper divisors (1).

211255163153249 is an equidigital number, since it uses as much as digits as its factorization.

211255163153249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944000, while the sum is 50.

The spelling of 211255163153249 in words is "two hundred eleven trillion, two hundred fifty-five billion, one hundred sixty-three million, one hundred fifty-three thousand, two hundred forty-nine".