11113550 has 48 divisors (see below), whose sum is σ = 23918112. Its totient is φ = 3763200.

The previous prime is 11113549. The next prime is 11113561. The reversal of 11113550 is 5531111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39410 + ... + 39690.

It is an arithmetic number, because the mean of its divisors is an integer number (498294).

Almost surely, 2^11113550 is an apocalyptic number.

11113550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11113550 is an abundant number, since it is smaller than the sum of its proper divisors (12804562).

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

11113550 is a wasteful number, since it uses less digits than its factorization.

11113550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 17.

The square root of 11113550 is about 3333.6991465938. The cubic root of 11113550 is about 223.1606422255.

Adding to 11113550 its reverse (5531111), we get a palindrome (16644661).

The spelling of 11113550 in words is "eleven million, one hundred thirteen thousand, five hundred fifty".