265217268 has 12 divisors (see below), whose sum is σ = 618840320. Its totient is φ = 88405752.

The previous prime is 265217261. The next prime is 265217269. The reversal of 265217268 is 862712562.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265217261) 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, 11050708 + ... + 11050731.

Almost surely, 2^265217268 is an apocalyptic number.

It is an amenable number.

265217268 is an abundant number, since it is smaller than the sum of its proper divisors (353623052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265217268 is a wasteful number, since it uses less digits than its factorization.

265217268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22101446 (or 22101444 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 265217268 is about 16285.4925624004. The cubic root of 265217268 is about 642.4913213764.

The spelling of 265217268 in words is "two hundred sixty-five million, two hundred seventeen thousand, two hundred sixty-eight".