265240033 has 2 divisors, whose sum is σ = 265240034. Its totient is φ = 265240032.

The previous prime is 265240009. The next prime is 265240043. The reversal of 265240033 is 330042562.

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., 221057424 + 44182609 = 14868^2 + 6647^2 .

It is a cyclic number.

It is not a de Polignac number, because 265240033 - 2⁹ = 265239521 is a prime.

It is not a weakly prime, because it can be changed into another prime (265240043) 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, 132620016 + 132620017.

It is an arithmetic number, because the mean of its divisors is an integer number (132620017).

Almost surely, 2^265240033 is an apocalyptic number.

It is an amenable number.

265240033 is a deficient number, since it is larger than the sum of its proper divisors (1).

265240033 is an equidigital number, since it uses as much as digits as its factorization.

265240033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 265240033 is about 16286.1914823571. The cubic root of 265240033 is about 642.5097036592.

Adding to 265240033 its reverse (330042562), we get a palindrome (595282595).

The spelling of 265240033 in words is "two hundred sixty-five million, two hundred forty thousand, thirty-three".