11132550 has 144 divisors (see below), whose sum is σ = 35341488. Its totient is φ = 2476800.

The previous prime is 11132543. The next prime is 11132557. The reversal of 11132550 is 5523111.

11132550 is a `hidden beast` number, since 1 + 113 + 2 + 550 = 666.

It is an interprime number because it is at equal distance from previous prime (11132543) and next prime (11132557).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11132557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 64264 + ... + 64436.

It is an arithmetic number, because the mean of its divisors is an integer number (245427).

Almost surely, 2^11132550 is an apocalyptic number.

11132550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11132550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17670744).

11132550 is an abundant number, since it is smaller than the sum of its proper divisors (24208938).

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

11132550 is a wasteful number, since it uses less digits than its factorization.

11132550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 11132550 is about 3336.5476169238. The cubic root of 11132550 is about 223.2877434726.

Adding to 11132550 its reverse (5523111), we get a palindrome (16655661).

It can be divided in two parts, 1113 and 2550, that added together give a palindrome (3663).

The spelling of 11132550 in words is "eleven million, one hundred thirty-two thousand, five hundred fifty".