5621938529 has 2 divisors, whose sum is σ = 5621938530. Its totient is φ = 5621938528.

The previous prime is 5621938499. The next prime is 5621938583. The reversal of 5621938529 is 9258391265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3570301504 + 2051637025 = 59752^2 + 45295^2 .

It is a cyclic number.

It is not a de Polignac number, because 5621938529 - 2²⁴ = 5605161313 is a prime.

It is not a weakly prime, because it can be changed into another prime (5621988529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2810969264 + 2810969265.

It is an arithmetic number, because the mean of its divisors is an integer number (2810969265).

Almost surely, 2^5621938529 is an apocalyptic number.

It is an amenable number.

5621938529 is a deficient number, since it is larger than the sum of its proper divisors (1).

5621938529 is an equidigital number, since it uses as much as digits as its factorization.

5621938529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 50.

The square root of 5621938529 is about 74979.5874155093. The cubic root of 5621938529 is about 1778.1239470051.

The spelling of 5621938529 in words is "five billion, six hundred twenty-one million, nine hundred thirty-eight thousand, five hundred twenty-nine".