5500404 has 144 divisors (see below), whose sum is σ = 18100992. Its totient is φ = 1368576.

The previous prime is 5500403. The next prime is 5500433. The reversal of 5500404 is 4040055.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5500403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75312 + ... + 75384.

Almost surely, 2^5500404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5500404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9050496).

5500404 is an abundant number, since it is smaller than the sum of its proper divisors (12600588).

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

5500404 is a wasteful number, since it uses less digits than its factorization.

5500404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 5500404 is about 2345.2940114195. The cubic root of 5500404 is about 176.5217386627.

Adding to 5500404 its reverse (4040055), we get a palindrome (9540459).

The spelling of 5500404 in words is "five million, five hundred thousand, four hundred four".