265020317 has 2 divisors, whose sum is σ = 265020318. Its totient is φ = 265020316.

The previous prime is 265020289. The next prime is 265020337. The reversal of 265020317 is 713020562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264843076 + 177241 = 16274^2 + 421^2 .

It is a cyclic number.

It is not a de Polignac number, because 265020317 - 2⁶ = 265020253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265020337) 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, 132510158 + 132510159.

It is an arithmetic number, because the mean of its divisors is an integer number (132510159).

Almost surely, 2^265020317 is an apocalyptic number.

It is an amenable number.

265020317 is a deficient number, since it is larger than the sum of its proper divisors (1).

265020317 is an equidigital number, since it uses as much as digits as its factorization.

265020317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 265020317 is about 16279.4446158338. Note that the first 3 decimals coincide. The cubic root of 265020317 is about 642.3322434439.

Adding to 265020317 its reverse (713020562), we get a palindrome (978040879).

The spelling of 265020317 in words is "two hundred sixty-five million, twenty thousand, three hundred seventeen".