5515532800 has 120 divisors (see below), whose sum is σ = 14385016800. Its totient is φ = 2090004480.

The previous prime is 5515532797. The next prime is 5515532863. The reversal of 5515532800 is 82355155.

It is a super-2 number, since 2×5515532800² = 60842204135751680000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231861 + ... + 254539.

It is an arithmetic number, because the mean of its divisors is an integer number (119875140).

Almost surely, 2^5515532800 is an apocalyptic number.

5515532800 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 5515532800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7192508400).

5515532800 is an abundant number, since it is smaller than the sum of its proper divisors (8869484000).

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

5515532800 is a wasteful number, since it uses less digits than its factorization.

5515532800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22726 (or 22705 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

The square root of 5515532800 is about 74266.6331537926. The cubic root of 5515532800 is about 1766.8343086833.

Adding to 5515532800 its reverse (82355155), we get a palindrome (5597887955).

The spelling of 5515532800 in words is "five billion, five hundred fifteen million, five hundred thirty-two thousand, eight hundred".