265016953 has 4 divisors (see below), whose sum is σ = 265684900. Its totient is φ = 264349008.

The previous prime is 265016909. The next prime is 265017019. The reversal of 265016953 is 359610562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 359610562 = 2 ⋅179805281.

It can be written as a sum of positive squares in 2 ways, for example, as 217503504 + 47513449 = 14748^2 + 6893^2 .

It is a cyclic number.

It is not a de Polignac number, because 265016953 - 2⁹ = 265016441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265016053) 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, 333378 + ... + 334171.

It is an arithmetic number, because the mean of its divisors is an integer number (66421225).

Almost surely, 2^265016953 is an apocalyptic number.

It is an amenable number.

265016953 is a deficient number, since it is larger than the sum of its proper divisors (667947).

265016953 is an equidigital number, since it uses as much as digits as its factorization.

265016953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667946.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 265016953 is about 16279.3412950279. The cubic root of 265016953 is about 642.3295256462.

The spelling of 265016953 in words is "two hundred sixty-five million, sixteen thousand, nine hundred fifty-three".