11120550 has 144 divisors (see below), whose sum is σ = 34350480. Its totient is φ = 2365440.

The previous prime is 11120519. The next prime is 11120579. The reversal of 11120550 is 5502111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 124906 + ... + 124994.

It is an arithmetic number, because the mean of its divisors is an integer number (238545).

Almost surely, 2^11120550 is an apocalyptic number.

11120550 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 11120550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17175240).

11120550 is an abundant number, since it is smaller than the sum of its proper divisors (23229930).

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

11120550 is a wasteful number, since it uses less digits than its factorization.

11120550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 11120550 is about 3334.7488661067. The cubic root of 11120550 is about 223.2074858424.

Adding to 11120550 its reverse (5502111), we get a palindrome (16622661).

The spelling of 11120550 in words is "eleven million, one hundred twenty thousand, five hundred fifty".