5530621 has 2 divisors, whose sum is σ = 5530622. Its totient is φ = 5530620.

The previous prime is 5530589. The next prime is 5530663. The reversal of 5530621 is 1260355.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5359225 + 171396 = 2315^2 + 414^2 .

It is a cyclic number.

It is not a de Polignac number, because 5530621 - 2⁵ = 5530589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5530592 and 5530601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5531621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765310 + 2765311.

It is an arithmetic number, because the mean of its divisors is an integer number (2765311).

Almost surely, 2^5530621 is an apocalyptic number.

It is an amenable number.

5530621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5530621 is an equidigital number, since it uses as much as digits as its factorization.

5530621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 5530621 is about 2351.7272375852. The cubic root of 5530621 is about 176.8443949344.

Adding to 5530621 its reverse (1260355), we get a palindrome (6790976).

The spelling of 5530621 in words is "five million, five hundred thirty thousand, six hundred twenty-one".