265253243 has 4 divisors (see below), whose sum is σ = 279213960. Its totient is φ = 251292528.

The previous prime is 265253221. The next prime is 265253249. The reversal of 265253243 is 342352562.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 265253243 - 2⁶ = 265253179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265253249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6980330 + ... + 6980367.

It is an arithmetic number, because the mean of its divisors is an integer number (69803490).

Almost surely, 2^265253243 is an apocalyptic number.

265253243 is a deficient number, since it is larger than the sum of its proper divisors (13960717).

265253243 is a wasteful number, since it uses less digits than its factorization.

265253243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13960716.

The product of its digits is 43200, while the sum is 32.

The square root of 265253243 is about 16286.5970355995. The cubic root of 265253243 is about 642.5203699881.

The spelling of 265253243 in words is "two hundred sixty-five million, two hundred fifty-three thousand, two hundred forty-three".