5521540 has 24 divisors (see below), whose sum is σ = 11816280. Its totient is φ = 2166528.

The previous prime is 5521499. The next prime is 5521543. The reversal of 5521540 is 451255.

5521540 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2617924 + 2903616 = 1618^2 + 1704^2 .

It is not an unprimeable number, because it can be changed into a prime (5521543) 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, 1545 + ... + 3664.

It is an arithmetic number, because the mean of its divisors is an integer number (492345).

Almost surely, 2^5521540 is an apocalyptic number.

It is an amenable number.

5521540 is an abundant number, since it is smaller than the sum of its proper divisors (6294740).

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

5521540 is a wasteful number, since it uses less digits than its factorization.

5521540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271 (or 5269 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 5521540 is about 2349.7957358034. The cubic root of 5521540 is about 176.7475520602.

Adding to 5521540 its reverse (451255), we get a palindrome (5972795).

It can be divided in two parts, 55215 and 40, that added together give a palindrome (55255).

The spelling of 5521540 in words is "five million, five hundred twenty-one thousand, five hundred forty".