265491488 has 24 divisors (see below), whose sum is σ = 523411308. Its totient is φ = 132561664.

The previous prime is 265491487. The next prime is 265491493. The reversal of 265491488 is 884194562.

It can be written as a sum of positive squares in 2 ways, for example, as 201299344 + 64192144 = 14188^2 + 8012^2 .

It is not an unprimeable number, because it can be changed into a prime (265491487) 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, 19370 + ... + 30102.

Almost surely, 2^265491488 is an apocalyptic number.

It is an amenable number.

265491488 is a deficient number, since it is larger than the sum of its proper divisors (257919820).

265491488 is a wasteful number, since it uses less digits than its factorization.

265491488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11516 (or 11508 counting only the distinct ones).

The product of its digits is 552960, while the sum is 47.

The square root of 265491488 is about 16293.9095370019. The cubic root of 265491488 is about 642.7126786116.

The spelling of 265491488 in words is "two hundred sixty-five million, four hundred ninety-one thousand, four hundred eighty-eight".