265952249 has 2 divisors, whose sum is σ = 265952250. Its totient is φ = 265952248.

The previous prime is 265952231. The next prime is 265952257. The reversal of 265952249 is 942259562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151462249 + 114490000 = 12307^2 + 10700^2 .

It is a cyclic number.

It is not a de Polignac number, because 265952249 - 2⁸ = 265951993 is a prime.

It is not a weakly prime, because it can be changed into another prime (265922249) 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, 132976124 + 132976125.

It is an arithmetic number, because the mean of its divisors is an integer number (132976125).

Almost surely, 2^265952249 is an apocalyptic number.

It is an amenable number.

265952249 is a deficient number, since it is larger than the sum of its proper divisors (1).

265952249 is an equidigital number, since it uses as much as digits as its factorization.

265952249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 44.

The square root of 265952249 is about 16308.0424637662. The cubic root of 265952249 is about 643.0842734329.

The spelling of 265952249 in words is "two hundred sixty-five million, nine hundred fifty-two thousand, two hundred forty-nine".