5501440 has 80 divisors (see below), whose sum is σ = 15124032. Its totient is φ = 1880064.

The previous prime is 5501423. The next prime is 5501443. The reversal of 5501440 is 441055.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (5501443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17767 + ... + 18073.

Almost surely, 2^5501440 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 5501440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7562016).

5501440 is an abundant number, since it is smaller than the sum of its proper divisors (9622592).

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

5501440 is an equidigital number, since it uses as much as digits as its factorization.

5501440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 5501440 is about 2345.5148688508. The cubic root of 5501440 is about 176.5328205784.

Adding to 5501440 its reverse (441055), we get a palindrome (5942495).

The spelling of 5501440 in words is "five million, five hundred one thousand, four hundred forty".