265012765 has 8 divisors (see below), whose sum is σ = 318707928. Its totient is φ = 211548480.

The previous prime is 265012763. The next prime is 265012771. The reversal of 265012765 is 567210562.

It can be written as a sum of positive squares in 4 ways, for example, as 70744921 + 194267844 = 8411^2 + 13938^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 265012765 - 2¹ = 265012763 is a prime.

It is a super-2 number, since 2×265012765² = 140463531225890450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 265012765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265012763) by changing a digit.

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, 55182 + ... + 59791.

It is an arithmetic number, because the mean of its divisors is an integer number (39838491).

Almost surely, 2^265012765 is an apocalyptic number.

It is an amenable number.

265012765 is a deficient number, since it is larger than the sum of its proper divisors (53695163).

265012765 is a wasteful number, since it uses less digits than its factorization.

265012765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115439.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 265012765 is about 16279.2126652366. The cubic root of 265012765 is about 642.3261421014.

The spelling of 265012765 in words is "two hundred sixty-five million, twelve thousand, seven hundred sixty-five".