5550500 has 48 divisors (see below), whose sum is σ = 12855024. Its totient is φ = 2086400.

The previous prime is 5550497. The next prime is 5550529. The reversal of 5550500 is 50555.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1763584 + 3786916 = 1328^2 + 1946^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 8174 + ... + 8826.

It is an arithmetic number, because the mean of its divisors is an integer number (267813).

Almost surely, 2^5550500 is an apocalyptic number.

5550500 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 5550500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6427512).

5550500 is an abundant number, since it is smaller than the sum of its proper divisors (7304524).

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

5550500 is a wasteful number, since it uses less digits than its factorization.

5550500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 20.

The square root of 5550500 is about 2355.9499145780. The cubic root of 5550500 is about 177.0560219318.

Subtracting from 5550500 its reverse (50555), we obtain a palindrome (5499945).

The spelling of 5550500 in words is "five million, five hundred fifty thousand, five hundred".