265475065 has 4 divisors (see below), whose sum is σ = 318570084. Its totient is φ = 212380048.

The previous prime is 265475047. The next prime is 265475069. The reversal of 265475065 is 560574562.

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 59351616 + 206123449 = 7704^2 + 14357^2 .

It is a cyclic number.

It is not a de Polignac number, because 265475065 - 2⁹ = 265474553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265475069) 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, 26547502 + ... + 26547511.

It is an arithmetic number, because the mean of its divisors is an integer number (79642521).

Almost surely, 2^265475065 is an apocalyptic number.

It is an amenable number.

265475065 is a deficient number, since it is larger than the sum of its proper divisors (53095019).

265475065 is an equidigital number, since it uses as much as digits as its factorization.

265475065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53095018.

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 265475065 is about 16293.4055678977. The cubic root of 265475065 is about 642.6994258478.

The spelling of 265475065 in words is "two hundred sixty-five million, four hundred seventy-five thousand, sixty-five".