265550447 has 2 divisors, whose sum is σ = 265550448. Its totient is φ = 265550446.

The previous prime is 265550393. The next prime is 265550459. The reversal of 265550447 is 744055562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265550447 - 2⁸ = 265550191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 265550447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265550497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132775223 + 132775224.

It is an arithmetic number, because the mean of its divisors is an integer number (132775224).

Almost surely, 2^265550447 is an apocalyptic number.

265550447 is a deficient number, since it is larger than the sum of its proper divisors (1).

265550447 is an equidigital number, since it uses as much as digits as its factorization.

265550447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168000, while the sum is 38.

The square root of 265550447 is about 16295.7186708657. The cubic root of 265550447 is about 642.7602518783.

The spelling of 265550447 in words is "two hundred sixty-five million, five hundred fifty thousand, four hundred forty-seven".