5518454400 has 384 divisors, whose sum is σ = 21081686400. Its totient is φ = 1407098880.

The previous prime is 5518454353. The next prime is 5518454453. The reversal of 5518454400 is 44548155.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1985812 + ... + 1988588.

It is an arithmetic number, because the mean of its divisors is an integer number (54900225).

Almost surely, 2^5518454400 is an apocalyptic number.

5518454400 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 5518454400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10540843200).

5518454400 is an abundant number, since it is smaller than the sum of its proper divisors (15563232000).

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

5518454400 is a wasteful number, since it uses less digits than its factorization.

5518454400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833 (or 2810 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The square root of 5518454400 is about 74286.3002174694. The cubic root of 5518454400 is about 1767.1462200392.

The spelling of 5518454400 in words is "five billion, five hundred eighteen million, four hundred fifty-four thousand, four hundred".