5515540800 has 336 divisors, whose sum is σ = 22562222592. Its totient is φ = 1146009600.

The previous prime is 5515540763. The next prime is 5515540819. The reversal of 5515540800 is 80455155.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (33).

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 47 ways as a sum of consecutive naturals, for example, 362139 + ... + 377061.

It is an arithmetic number, because the mean of its divisors is an integer number (67149472).

Almost surely, 2^5515540800 is an apocalyptic number.

5515540800 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 5515540800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11281111296).

5515540800 is an abundant number, since it is smaller than the sum of its proper divisors (17046681792).

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

5515540800 is a wasteful number, since it uses less digits than its factorization.

5515540800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14966 (or 14951 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 33.

The square root of 5515540800 is about 74266.6870137614. The cubic root of 5515540800 is about 1766.8351629173.

Adding to 5515540800 its reverse (80455155), we get a palindrome (5595995955).

The spelling of 5515540800 in words is "five billion, five hundred fifteen million, five hundred forty thousand, eight hundred".