5550305021 has 2 divisors, whose sum is σ = 5550305022. Its totient is φ = 5550305020.

The previous prime is 5550305017. The next prime is 5550305029. The reversal of 5550305021 is 1205030555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4062660121 + 1487644900 = 63739^2 + 38570^2 .

It is a cyclic number.

It is not a de Polignac number, because 5550305021 - 2² = 5550305017 is a prime.

It is a super-2 number, since 2×5550305021² = 61611771652275620882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5550305029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775152510 + 2775152511.

It is an arithmetic number, because the mean of its divisors is an integer number (2775152511).

Almost surely, 2^5550305021 is an apocalyptic number.

It is an amenable number.

5550305021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5550305021 is an equidigital number, since it uses as much as digits as its factorization.

5550305021 is an odious number, because the sum of its binary digits is odd.

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

The square root of 5550305021 is about 74500.3692675412. The cubic root of 5550305021 is about 1770.5394868852.

Adding to 5550305021 its reverse (1205030555), we get a palindrome (6755335576).

The spelling of 5550305021 in words is "five billion, five hundred fifty million, three hundred five thousand, twenty-one".