11089533 has 32 divisors (see below), whose sum is σ = 18592000. Its totient is φ = 5842368.

The previous prime is 11089531. The next prime is 11089549. The reversal of 11089533 is 33598011.

It is a happy number.

It is not a de Polignac number, because 11089533 - 2¹ = 11089531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11089533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11089531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12963 + ... + 13791.

It is an arithmetic number, because the mean of its divisors is an integer number (581000).

Almost surely, 2^11089533 is an apocalyptic number.

11089533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11089533 is a deficient number, since it is larger than the sum of its proper divisors (7502467).

11089533 is an equidigital number, since it uses as much as digits as its factorization.

11089533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 11089533 is about 3330.0950436887. The cubic root of 11089533 is about 222.9997720979. Note that the first 3 decimals are identical.

The spelling of 11089533 in words is "eleven million, eighty-nine thousand, five hundred thirty-three".