265055489 has 2 divisors, whose sum is σ = 265055490. Its totient is φ = 265055488.

The previous prime is 265055467. The next prime is 265055509. The reversal of 265055489 is 984550562.

265055489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 262699264 + 2356225 = 16208^2 + 1535^2 .

It is a cyclic number.

It is not a de Polignac number, because 265055489 - 2²⁴ = 248278273 is a prime.

It is not a weakly prime, because it can be changed into another prime (265055459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132527744 + 132527745.

It is an arithmetic number, because the mean of its divisors is an integer number (132527745).

Almost surely, 2^265055489 is an apocalyptic number.

It is an amenable number.

265055489 is a deficient number, since it is larger than the sum of its proper divisors (1).

265055489 is an equidigital number, since it uses as much as digits as its factorization.

265055489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432000, while the sum is 44.

The square root of 265055489 is about 16280.5248379774. The cubic root of 265055489 is about 642.3606577564.

The spelling of 265055489 in words is "two hundred sixty-five million, fifty-five thousand, four hundred eighty-nine".