5530505021 has 2 divisors, whose sum is σ = 5530505022. Its totient is φ = 5530505020.

The previous prime is 5530504999. The next prime is 5530505051. The reversal of 5530505021 is 1205050355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4936608121 + 593896900 = 70261^2 + 24370^2 .

It is a cyclic number.

It is not a de Polignac number, because 5530505021 - 2¹⁸ = 5530242877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5530505051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765252510 + 2765252511.

It is an arithmetic number, because the mean of its divisors is an integer number (2765252511).

Almost surely, 2^5530505021 is an apocalyptic number.

It is an amenable number.

5530505021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5530505021 is an equidigital number, since it uses as much as digits as its factorization.

5530505021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 5530505021 is about 74367.3652955381. The cubic root of 5530505021 is about 1768.4315876341.

Adding to 5530505021 its reverse (1205050355), we get a palindrome (6735555376).

The spelling of 5530505021 in words is "five billion, five hundred thirty million, five hundred five thousand, twenty-one".