5503420325321 has 2 divisors, whose sum is σ = 5503420325322. Its totient is φ = 5503420325320.

The previous prime is 5503420325311. The next prime is 5503420325383. The reversal of 5503420325321 is 1235230243055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5422662052921 + 80758272400 = 2328661^2 + 284180^2 .

It is a cyclic number.

It is not a de Polignac number, because 5503420325321 - 2³⁸ = 5228542418377 is a prime.

It is not a weakly prime, because it can be changed into another prime (5503420325311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2751710162660 + 2751710162661.

It is an arithmetic number, because the mean of its divisors is an integer number (2751710162661).

Almost surely, 2^{5503420325321} is an apocalyptic number.

It is an amenable number.

5503420325321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5503420325321 is an equidigital number, since it uses as much as digits as its factorization.

5503420325321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 5503420325321 its reverse (1235230243055), we get a palindrome (6738650568376).

The spelling of 5503420325321 in words is "five trillion, five hundred three billion, four hundred twenty million, three hundred twenty-five thousand, three hundred twenty-one".