5389553021 has 2 divisors, whose sum is σ = 5389553022. Its totient is φ = 5389553020.

The previous prime is 5389553003. The next prime is 5389553023. The reversal of 5389553021 is 1203559835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5359850521 + 29702500 = 73211^2 + 5450^2 .

It is a cyclic number.

It is not a de Polignac number, because 5389553021 - 2¹⁰ = 5389551997 is a prime.

It is a Sophie Germain prime.

Together with 5389553023, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5389553021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5389553023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2694776510 + 2694776511.

It is an arithmetic number, because the mean of its divisors is an integer number (2694776511).

Almost surely, 2^5389553021 is an apocalyptic number.

It is an amenable number.

5389553021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5389553021 is an equidigital number, since it uses as much as digits as its factorization.

5389553021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 5389553021 is about 73413.5751819784. The cubic root of 5389553021 is about 1753.2785365496.

It can be divided in two parts, 538 and 9553021, that added together give a palindrome (9553559).

The spelling of 5389553021 in words is "five billion, three hundred eighty-nine million, five hundred fifty-three thousand, twenty-one".