11155552 has 36 divisors (see below), whose sum is σ = 22993740. Its totient is φ = 5327168.

The previous prime is 11155549. The next prime is 11155561. The reversal of 11155552 is 25555111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16599 + ... + 17257.

It is an arithmetic number, because the mean of its divisors is an integer number (638715).

Almost surely, 2^11155552 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 11155552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11496870).

11155552 is an abundant number, since it is smaller than the sum of its proper divisors (11838188).

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

11155552 is an equidigital number, since it uses as much as digits as its factorization.

11155552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 684 counting only the distinct ones).

The product of its digits is 1250, while the sum is 25.

The square root of 11155552 is about 3339.9928143635. The cubic root of 11155552 is about 223.4414228891.

The spelling of 11155552 in words is "eleven million, one hundred fifty-five thousand, five hundred fifty-two".