265416499 has 2 divisors, whose sum is σ = 265416500. Its totient is φ = 265416498.

The previous prime is 265416479. The next prime is 265416509. The reversal of 265416499 is 994614562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265416499 - 2⁵ = 265416467 is a prime.

It is not a weakly prime, because it can be changed into another prime (265416479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132708249 + 132708250.

It is an arithmetic number, because the mean of its divisors is an integer number (132708250).

Almost surely, 2^265416499 is an apocalyptic number.

265416499 is a deficient number, since it is larger than the sum of its proper divisors (1).

265416499 is an equidigital number, since it uses as much as digits as its factorization.

265416499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 46.

The square root of 265416499 is about 16291.6082385994. The cubic root of 265416499 is about 642.6521607649.

The spelling of 265416499 in words is "two hundred sixty-five million, four hundred sixteen thousand, four hundred ninety-nine".