11533000 has 64 divisors (see below), whose sum is σ = 28454400. Its totient is φ = 4363200.

The previous prime is 11532991. The next prime is 11533003. The reversal of 11533000 is 33511.

It is not an unprimeable number, because it can be changed into a prime (11533003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18697 + ... + 19303.

It is an arithmetic number, because the mean of its divisors is an integer number (444600).

Almost surely, 2^11533000 is an apocalyptic number.

11533000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11533000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14227200).

11533000 is an abundant number, since it is smaller than the sum of its proper divisors (16921400).

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

11533000 is a wasteful number, since it uses less digits than its factorization.

11533000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 11533000 is about 3396.0270905869. The cubic root of 11533000 is about 225.9335696366.

Adding to 11533000 its reverse (33511), we get a palindrome (11566511).

The spelling of 11533000 in words is "eleven million, five hundred thirty-three thousand".