265628265 has 96 divisors (see below), whose sum is σ = 543697920. Its totient is φ = 109904256.

The previous prime is 265628263. The next prime is 265628269. The reversal of 265628265 is 562826562.

It is not a de Polignac number, because 265628265 - 2¹ = 265628263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (265628263) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 320782 + ... + 321608.

It is an arithmetic number, because the mean of its divisors is an integer number (5663520).

Almost surely, 2^265628265 is an apocalyptic number.

It is an amenable number.

265628265 is an abundant number, since it is smaller than the sum of its proper divisors (278069655).

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

265628265 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (265628264) it forms an eRAP, since the sums of their prime factors are consecutive (890 and 891).

265628265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891 (or 884 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The square root of 265628265 is about 16298.1061783264. The cubic root of 265628265 is about 642.8230314528.

The spelling of 265628265 in words is "two hundred sixty-five million, six hundred twenty-eight thousand, two hundred sixty-five".