265879085 has 4 divisors (see below), whose sum is σ = 319054908. Its totient is φ = 212703264.

The previous prime is 265879073. The next prime is 265879087. The reversal of 265879085 is 580978562.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 122190916 + 143688169 = 11054^2 + 11987^2 .

It is a cyclic number.

It is not a de Polignac number, because 265879085 - 2⁴ = 265879069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265879087) 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 in 3 ways as a sum of consecutive naturals, for example, 26587904 + ... + 26587913.

It is an arithmetic number, because the mean of its divisors is an integer number (79763727).

Almost surely, 2^265879085 is an apocalyptic number.

It is an amenable number.

265879085 is a deficient number, since it is larger than the sum of its proper divisors (53175823).

265879085 is an equidigital number, since it uses as much as digits as its factorization.

265879085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53175822.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The square root of 265879085 is about 16305.7991217849. The cubic root of 265879085 is about 643.0252967642.

The spelling of 265879085 in words is "two hundred sixty-five million, eight hundred seventy-nine thousand, eighty-five".