5545555400 has 192 divisors, whose sum is σ = 16405200000. Its totient is φ = 1728249600.

The previous prime is 5545555399. The next prime is 5545555439. The reversal of 5545555400 is 45555455.

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, 750926 + ... + 758274.

It is an arithmetic number, because the mean of its divisors is an integer number (85443750).

Almost surely, 2^5545555400 is an apocalyptic number.

5545555400 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 5545555400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8202600000).

5545555400 is an abundant number, since it is smaller than the sum of its proper divisors (10859644600).

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

5545555400 is a wasteful number, since it uses less digits than its factorization.

5545555400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7397 (or 7374 counting only the distinct ones).

The product of its (nonzero) digits is 250000, while the sum is 38.

The square root of 5545555400 is about 74468.4859521127. The cubic root of 5545555400 is about 1770.0343019516.

Subtracting from 5545555400 its reverse (45555455), we obtain a palindrome (5499999945).

It can be divided in two parts, 554555 and 5400, that added together give a palindrome (559955).

The spelling of 5545555400 in words is "five billion, five hundred forty-five million, five hundred fifty-five thousand, four hundred".