5521123300 has 144 divisors (see below), whose sum is σ = 15149030400. Its totient is φ = 1696464000.

The previous prime is 5521123217. The next prime is 5521123301. The reversal of 5521123300 is 33211255.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (5521123301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 541651 + ... + 551749.

It is an arithmetic number, because the mean of its divisors is an integer number (105201600).

Almost surely, 2^5521123300 is an apocalyptic number.

5521123300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5521123300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7574515200).

5521123300 is an abundant number, since it is smaller than the sum of its proper divisors (9627907100).

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

5521123300 is a wasteful number, since it uses less digits than its factorization.

5521123300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10202 (or 10195 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 5521123300 is about 74304.2616543627. The cubic root of 5521123300 is about 1767.4310568241.

Adding to 5521123300 its reverse (33211255), we get a palindrome (5554334555).

It can be divided in two parts, 5521 and 123300, that added together give a palindrome (128821).

The spelling of 5521123300 in words is "five billion, five hundred twenty-one million, one hundred twenty-three thousand, three hundred".