5521440 has 48 divisors (see below), whose sum is σ = 17394048. Its totient is φ = 1472256.

The previous prime is 5521427. The next prime is 5521463. The reversal of 5521440 is 441255.

5521440 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5272 + ... + 6231.

It is an arithmetic number, because the mean of its divisors is an integer number (362376).

Almost surely, 2^5521440 is an apocalyptic number.

It is an amenable number.

5521440 is an abundant number, since it is smaller than the sum of its proper divisors (11872608).

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

5521440 is a wasteful number, since it uses less digits than its factorization.

5521440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11521 (or 11513 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 5521440 is about 2349.7744572618. The cubic root of 5521440 is about 176.7464850353.

Adding to 5521440 its reverse (441255), we get a palindrome (5962695).

The spelling of 5521440 in words is "five million, five hundred twenty-one thousand, four hundred forty".