265224779 has 2 divisors, whose sum is σ = 265224780. Its totient is φ = 265224778.

The previous prime is 265224737. The next prime is 265224811. The reversal of 265224779 is 977422562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265224779 - 2¹⁶ = 265159243 is a prime.

It is not a weakly prime, because it can be changed into another prime (265224979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132612389 + 132612390.

It is an arithmetic number, because the mean of its divisors is an integer number (132612390).

Almost surely, 2^265224779 is an apocalyptic number.

265224779 is a deficient number, since it is larger than the sum of its proper divisors (1).

265224779 is an equidigital number, since it uses as much as digits as its factorization.

265224779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 44.

The square root of 265224779 is about 16285.7231647845. The cubic root of 265224779 is about 642.4973864752.

The spelling of 265224779 in words is "two hundred sixty-five million, two hundred twenty-four thousand, seven hundred seventy-nine".