11591560 has 16 divisors (see below), whose sum is σ = 26081100. Its totient is φ = 4636608.

The previous prime is 11591557. The next prime is 11591581. The reversal of 11591560 is 6519511.

11591560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11573604 + 17956 = 3402^2 + 134^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144855 + ... + 144934.

Almost surely, 2^11591560 is an apocalyptic number.

11591560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11591560 is an abundant number, since it is smaller than the sum of its proper divisors (14489540).

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

11591560 is a wasteful number, since it uses less digits than its factorization.

11591560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289800 (or 289796 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 11591560 is about 3404.6380130639. The cubic root of 11591560 is about 226.3153245842.

The spelling of 11591560 in words is "eleven million, five hundred ninety-one thousand, five hundred sixty".