5521321 has 8 divisors (see below), whose sum is σ = 5975424. Its totient is φ = 5071440.

The previous prime is 5521309. The next prime is 5521361. The reversal of 5521321 is 1231255.

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 5521321 - 2⁵ = 5521289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5521301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2016 + ... + 3886.

It is an arithmetic number, because the mean of its divisors is an integer number (746928).

Almost surely, 2^5521321 is an apocalyptic number.

It is an amenable number.

5521321 is a deficient number, since it is larger than the sum of its proper divisors (454103).

5521321 is a wasteful number, since it uses less digits than its factorization.

5521321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111.

The product of its digits is 300, while the sum is 19.

The square root of 5521321 is about 2349.7491355462. The cubic root of 5521321 is about 176.7452152589.

Adding to 5521321 its reverse (1231255), we get a palindrome (6752576).

The spelling of 5521321 in words is "five million, five hundred twenty-one thousand, three hundred twenty-one".