265260870 has 48 divisors (see below), whose sum is σ = 788205600. Its totient is φ = 60630912.

The previous prime is 265260859. The next prime is 265260871. The reversal of 265260870 is 78062562.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265260871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209895 + ... + 211154.

It is an arithmetic number, because the mean of its divisors is an integer number (16420950).

Almost surely, 2^265260870 is an apocalyptic number.

265260870 is an abundant number, since it is smaller than the sum of its proper divisors (522944730).

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

265260870 is a wasteful number, since it uses less digits than its factorization.

265260870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421069 (or 421066 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 265260870 is about 16286.8311835053. The cubic root of 265260870 is about 642.5265281986.

The spelling of 265260870 in words is "two hundred sixty-five million, two hundred sixty thousand, eight hundred seventy".