265026560 has 88 divisors (see below), whose sum is σ = 653402400. Its totient is φ = 103071744.

The previous prime is 265026557. The next prime is 265026569. The reversal of 265026560 is 65620562.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265026569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188741 + ... + 190139.

Almost surely, 2^265026560 is an apocalyptic number.

265026560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265026560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326701200).

265026560 is an abundant number, since it is smaller than the sum of its proper divisors (388375840).

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

265026560 is a wasteful number, since it uses less digits than its factorization.

265026560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461 (or 1443 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 265026560 is about 16279.6363595751. The cubic root of 265026560 is about 642.3372871437.

The spelling of 265026560 in words is "two hundred sixty-five million, twenty-six thousand, five hundred sixty".