235266256217 has 2 divisors, whose sum is σ = 235266256218. Its totient is φ = 235266256216.

The previous prime is 235266256213. The next prime is 235266256219. The reversal of 235266256217 is 712652662532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214457905216 + 20808351001 = 463096^2 + 144251^2 .

It is a cyclic number.

It is not a de Polignac number, because 235266256217 - 2² = 235266256213 is a prime.

It is a super-2 number, since 2×235266256217² (a number of 24 digits) contains 22 as substring.

Together with 235266256219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (235266256213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117633128108 + 117633128109.

It is an arithmetic number, because the mean of its divisors is an integer number (117633128109).

Almost surely, 2^235266256217 is an apocalyptic number.

It is an amenable number.

235266256217 is a deficient number, since it is larger than the sum of its proper divisors (1).

235266256217 is an equidigital number, since it uses as much as digits as its factorization.

235266256217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 47.

The spelling of 235266256217 in words is "two hundred thirty-five billion, two hundred sixty-six million, two hundred fifty-six thousand, two hundred seventeen".