5540540 has 24 divisors (see below), whose sum is σ = 11724720. Its totient is φ = 2199168.

The previous prime is 5540531. The next prime is 5540573. The reversal of 5540540 is 450455.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1784 + ... + 3776.

It is an arithmetic number, because the mean of its divisors is an integer number (488530).

Almost surely, 2^5540540 is an apocalyptic number.

It is an amenable number.

5540540 is an abundant number, since it is smaller than the sum of its proper divisors (6184180).

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

5540540 is a wasteful number, since it uses less digits than its factorization.

5540540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141 (or 2139 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 5540540 is about 2353.8351684007. The cubic root of 5540540 is about 176.9500534698.

Adding to 5540540 its reverse (450455), we get a palindrome (5990995).

The spelling of 5540540 in words is "five million, five hundred forty thousand, five hundred forty".