265056560 has 40 divisors (see below), whose sum is σ = 617679216. Its totient is φ = 105777920.

The previous prime is 265056557. The next prime is 265056569. The reversal of 265056560 is 65650562.

265056560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 265056560.

It is not an unprimeable number, because it can be changed into a prime (265056569) 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, 33287 + ... + 40473.

Almost surely, 2^265056560 is an apocalyptic number.

265056560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265056560 is an abundant number, since it is smaller than the sum of its proper divisors (352622656).

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

265056560 is a wasteful number, since it uses less digits than its factorization.

265056560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7661 (or 7655 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 265056560 is about 16280.5577300042. The cubic root of 265056560 is about 642.3615229430.

The spelling of 265056560 in words is "two hundred sixty-five million, fifty-six thousand, five hundred sixty".