5538321 has 16 divisors (see below), whose sum is σ = 8406720. Its totient is φ = 3601440.

The previous prime is 5538317. The next prime is 5538359. The reversal of 5538321 is 1238355.

It is not a de Polignac number, because 5538321 - 2² = 5538317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5538301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1395 + ... + 3608.

It is an arithmetic number, because the mean of its divisors is an integer number (525420).

Almost surely, 2^5538321 is an apocalyptic number.

It is an amenable number.

5538321 is a deficient number, since it is larger than the sum of its proper divisors (2868399).

5538321 is a wasteful number, since it uses less digits than its factorization.

5538321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5053 (or 5047 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 5538321 is about 2353.3637627872. The cubic root of 5538321 is about 176.9264273371.

The spelling of 5538321 in words is "five million, five hundred thirty-eight thousand, three hundred twenty-one".