265056443 has 2 divisors, whose sum is σ = 265056444. Its totient is φ = 265056442.

The previous prime is 265056427. The next prime is 265056457. The reversal of 265056443 is 344650562.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265056443 - 2⁴ = 265056427 is a prime.

It is not a weakly prime, because it can be changed into another prime (265056643) 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, 132528221 + 132528222.

It is an arithmetic number, because the mean of its divisors is an integer number (132528222).

Almost surely, 2^265056443 is an apocalyptic number.

265056443 is a deficient number, since it is larger than the sum of its proper divisors (1).

265056443 is an equidigital number, since it uses as much as digits as its factorization.

265056443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 265056443 is about 16280.5541367608. The cubic root of 265056443 is about 642.3614284269.

The spelling of 265056443 in words is "two hundred sixty-five million, fifty-six thousand, four hundred forty-three".