55554550500 has 96 divisors (see below), whose sum is σ = 162094907520. Its totient is φ = 14785238400.

The previous prime is 55554550477. The next prime is 55554550507. The reversal of 55554550500 is 505545555.

It is not an unprimeable number, because it can be changed into a prime (55554550507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 727119 + ... + 799881.

It is an arithmetic number, because the mean of its divisors is an integer number (1688488620).

Almost surely, 2^55554550500 is an apocalyptic number.

55554550500 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 55554550500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81047453760).

55554550500 is an abundant number, since it is smaller than the sum of its proper divisors (106540357020).

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

55554550500 is a wasteful number, since it uses less digits than its factorization.

55554550500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73294 (or 73282 counting only the distinct ones).

The product of its (nonzero) digits is 312500, while the sum is 39.

The spelling of 55554550500 in words is "fifty-five billion, five hundred fifty-four million, five hundred fifty thousand, five hundred".