265772265 has 48 divisors (see below), whose sum is σ = 471496704. Its totient is φ = 127733760.

The previous prime is 265772257. The next prime is 265772267. The reversal of 265772265 is 562277562.

It is not a de Polignac number, because 265772265 - 2³ = 265772257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (265772267) 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 47 ways as a sum of consecutive naturals, for example, 229929 + ... + 231081.

It is an arithmetic number, because the mean of its divisors is an integer number (9822848).

Almost surely, 2^265772265 is an apocalyptic number.

It is an amenable number.

265772265 is a deficient number, since it is larger than the sum of its proper divisors (205724439).

265772265 is a wasteful number, since it uses less digits than its factorization.

265772265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310 (or 1299 counting only the distinct ones).

The product of its digits is 352800, while the sum is 42.

The square root of 265772265 is about 16302.5232709541. The cubic root of 265772265 is about 642.9391709438.

The spelling of 265772265 in words is "two hundred sixty-five million, seven hundred seventy-two thousand, two hundred sixty-five".