11591552 has 64 divisors (see below), whose sum is σ = 27980640. Its totient is φ = 4669440.

The previous prime is 11591549. The next prime is 11591557. The reversal of 11591552 is 25519511.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11591557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14852 + ... + 15612.

Almost surely, 2^11591552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11591552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13990320).

11591552 is an abundant number, since it is smaller than the sum of its proper divisors (16389088).

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

11591552 is an equidigital number, since it uses as much as digits as its factorization.

11591552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799 (or 787 counting only the distinct ones).

The product of its digits is 2250, while the sum is 29.

The square root of 11591552 is about 3404.6368381958. The cubic root of 11591552 is about 226.3152725198.

The spelling of 11591552 in words is "eleven million, five hundred ninety-one thousand, five hundred fifty-two".