5540521 has 8 divisors (see below), whose sum is σ = 6704640. Its totient is φ = 4469568.

The previous prime is 5540519. The next prime is 5540531. The reversal of 5540521 is 1250455.

5540521 is nontrivially palindromic in base 12.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5540521 - 2¹ = 5540519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5540492 and 5540501.

It is not an unprimeable number, because it can be changed into a prime (5540531) 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, 23161 + ... + 23398.

It is an arithmetic number, because the mean of its divisors is an integer number (838080).

Almost surely, 2^5540521 is an apocalyptic number.

It is an amenable number.

5540521 is a deficient number, since it is larger than the sum of its proper divisors (1164119).

5540521 is a wasteful number, since it uses less digits than its factorization.

5540521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46583.

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

The square root of 5540521 is about 2353.8311324307. The cubic root of 5540521 is about 176.9498511998.

Adding to 5540521 its reverse (1250455), we get a palindrome (6790976).

The spelling of 5540521 in words is "five million, five hundred forty thousand, five hundred twenty-one".