265198433 has 2 divisors, whose sum is σ = 265198434. Its totient is φ = 265198432.

The previous prime is 265198411. The next prime is 265198489. The reversal of 265198433 is 334891562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211498849 + 53699584 = 14543^2 + 7328^2 .

It is a cyclic number.

It is not a de Polignac number, because 265198433 - 2⁶ = 265198369 is a prime.

It is not a weakly prime, because it can be changed into another prime (265198403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132599216 + 132599217.

It is an arithmetic number, because the mean of its divisors is an integer number (132599217).

Almost surely, 2^265198433 is an apocalyptic number.

It is an amenable number.

265198433 is a deficient number, since it is larger than the sum of its proper divisors (1).

265198433 is an equidigital number, since it uses as much as digits as its factorization.

265198433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The square root of 265198433 is about 16284.9142767163. The cubic root of 265198433 is about 642.4761116949.

The spelling of 265198433 in words is "two hundred sixty-five million, one hundred ninety-eight thousand, four hundred thirty-three".