113216550 has 48 divisors (see below), whose sum is σ = 281781072. Its totient is φ = 30083200.

The previous prime is 113216527. The next prime is 113216569. The reversal of 113216550 is 55612311.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 113216550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46360 + ... + 48740.

It is an arithmetic number, because the mean of its divisors is an integer number (5870439).

Almost surely, 2^113216550 is an apocalyptic number.

113216550 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 113216550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140890536).

113216550 is an abundant number, since it is smaller than the sum of its proper divisors (168564522).

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

113216550 is a wasteful number, since it uses less digits than its factorization.

113216550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713 (or 2708 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 113216550 is about 10640.3265927320. The cubic root of 113216550 is about 483.7674445699.

Adding to 113216550 its reverse (55612311), we get a palindrome (168828861).

It can be divided in two parts, 11321 and 6550, that added together give a palindrome (17871).

The spelling of 113216550 in words is "one hundred thirteen million, two hundred sixteen thousand, five hundred fifty".