265315315 has 4 divisors (see below), whose sum is σ = 318378384. Its totient is φ = 212252248.

The previous prime is 265315313. The next prime is 265315321. The reversal of 265315315 is 513513562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 513513562 = 2 ⋅256756781.

It is a cyclic number.

It is not a de Polignac number, because 265315315 - 2¹ = 265315313 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265315313) 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 3 ways as a sum of consecutive naturals, for example, 26531527 + ... + 26531536.

It is an arithmetic number, because the mean of its divisors is an integer number (79594596).

Almost surely, 2^265315315 is an apocalyptic number.

265315315 is a deficient number, since it is larger than the sum of its proper divisors (53063069).

265315315 is an equidigital number, since it uses as much as digits as its factorization.

265315315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53063068.

The product of its digits is 13500, while the sum is 31.

The square root of 265315315 is about 16288.5025401355. The cubic root of 265315315 is about 642.5704848813.

Adding to 265315315 its reverse (513513562), we get a palindrome (778828877).

The spelling of 265315315 in words is "two hundred sixty-five million, three hundred fifteen thousand, three hundred fifteen".