265480947 has 12 divisors (see below), whose sum is σ = 383778720. Its totient is φ = 176845968.

The previous prime is 265480937. The next prime is 265480951. The reversal of 265480947 is 749084562.

It is a happy number.

It is not a de Polignac number, because 265480947 - 2¹² = 265476851 is a prime.

It is a super-3 number, since 3×265480947³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (265480907) 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 11 ways as a sum of consecutive naturals, for example, 829 + ... + 23057.

It is an arithmetic number, because the mean of its divisors is an integer number (31981560).

Almost surely, 2^265480947 is an apocalyptic number.

265480947 is a deficient number, since it is larger than the sum of its proper divisors (118297773).

265480947 is a wasteful number, since it uses less digits than its factorization.

265480947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23562 (or 23559 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 265480947 is about 16293.5860693710. The cubic root of 265480947 is about 642.7041724707.

The spelling of 265480947 in words is "two hundred sixty-five million, four hundred eighty thousand, nine hundred forty-seven".