11559880 has 16 divisors (see below), whose sum is σ = 26009820. Its totient is φ = 4623936.

The previous prime is 11559871. The next prime is 11559887. The reversal of 11559880 is 8895511.

It can be written as a sum of positive squares in 2 ways, for example, as 11410884 + 148996 = 3378^2 + 386^2 .

It is a super-2 number, since 2×11559880² = 267261651228800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11559887) 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, 144459 + ... + 144538.

Almost surely, 2^11559880 is an apocalyptic number.

11559880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11559880 is an abundant number, since it is smaller than the sum of its proper divisors (14449940).

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

11559880 is a wasteful number, since it uses less digits than its factorization.

11559880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289008 (or 289004 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 37.

The square root of 11559880 is about 3399.9823528954. The cubic root of 11559880 is about 226.1089614762.

It can be divided in two parts, 115 and 59880, that added together give a palindrome (59995).

The spelling of 11559880 in words is "eleven million, five hundred fifty-nine thousand, eight hundred eighty".