265251266 has 16 divisors (see below), whose sum is σ = 454927104. Its totient is φ = 113626464.

The previous prime is 265251251. The next prime is 265251271. The reversal of 265251266 is 662152562.

265251266 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×265251266² = 140716468229205512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51191 + ... + 56133.

It is an arithmetic number, because the mean of its divisors is an integer number (28432944).

Almost surely, 2^265251266 is an apocalyptic number.

265251266 is a deficient number, since it is larger than the sum of its proper divisors (189675838).

265251266 is a wasteful number, since it uses less digits than its factorization.

265251266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8785.

The product of its digits is 43200, while the sum is 35.

The square root of 265251266 is about 16286.5363414079. The cubic root of 265251266 is about 642.5187736948.

The spelling of 265251266 in words is "two hundred sixty-five million, two hundred fifty-one thousand, two hundred sixty-six".