265455779 has 2 divisors, whose sum is σ = 265455780. Its totient is φ = 265455778.

The previous prime is 265455767. The next prime is 265455787. The reversal of 265455779 is 977554562.

It is a happy number.

265455779 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 is a cyclic number.

It is not a de Polignac number, because 265455779 - 2²⁰ = 264407203 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (265455679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132727889 + 132727890.

It is an arithmetic number, because the mean of its divisors is an integer number (132727890).

Almost surely, 2^265455779 is an apocalyptic number.

265455779 is a deficient number, since it is larger than the sum of its proper divisors (1).

265455779 is an equidigital number, since it uses as much as digits as its factorization.

265455779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646000, while the sum is 50.

The square root of 265455779 is about 16292.8137226202. The cubic root of 265455779 is about 642.6838620492.

The spelling of 265455779 in words is "two hundred sixty-five million, four hundred fifty-five thousand, seven hundred seventy-nine".