5505343021 has 2 divisors, whose sum is σ = 5505343022. Its totient is φ = 5505343020.

The previous prime is 5505343001. The next prime is 5505343097. The reversal of 5505343021 is 1203435055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4907002500 + 598340521 = 70050^2 + 24461^2 .

It is a cyclic number.

It is not a de Polignac number, because 5505343021 - 2¹³ = 5505334829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5505343001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2752671510 + 2752671511.

It is an arithmetic number, because the mean of its divisors is an integer number (2752671511).

Almost surely, 2^5505343021 is an apocalyptic number.

It is an amenable number.

5505343021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5505343021 is an equidigital number, since it uses as much as digits as its factorization.

5505343021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 5505343021 is about 74197.9987668131. The cubic root of 5505343021 is about 1765.7455804045.

Adding to 5505343021 its reverse (1203435055), we get a palindrome (6708778076).

The spelling of 5505343021 in words is "five billion, five hundred five million, three hundred forty-three thousand, twenty-one".