55584500 has 48 divisors (see below), whose sum is σ = 127807680. Its totient is φ = 21060000.

The previous prime is 55584497. The next prime is 55584511. The reversal of 55584500 is 548555.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6575 + ... + 12425.

It is an arithmetic number, because the mean of its divisors is an integer number (2662660).

Almost surely, 2^55584500 is an apocalyptic number.

55584500 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 55584500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63903840).

55584500 is an abundant number, since it is smaller than the sum of its proper divisors (72223180).

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

55584500 is a wasteful number, since it uses less digits than its factorization.

55584500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889 (or 5877 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 55584500 is about 7455.5013245254. The cubic root of 55584500 is about 381.6376689151.

The spelling of 55584500 in words is "fifty-five million, five hundred eighty-four thousand, five hundred".