5638555441 has 2 divisors, whose sum is σ = 5638555442. Its totient is φ = 5638555440.

The previous prime is 5638555423. The next prime is 5638555453. The reversal of 5638555441 is 1445558365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5163141025 + 475414416 = 71855^2 + 21804^2 .

It is a cyclic number.

It is not a de Polignac number, because 5638555441 - 2¹³ = 5638547249 is a prime.

It is a super-2 number, since 2×5638555441² = 63586614922461408962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5638555391 and 5638555400.

It is not a weakly prime, because it can be changed into another prime (5638555421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2819277720 + 2819277721.

It is an arithmetic number, because the mean of its divisors is an integer number (2819277721).

Almost surely, 2^5638555441 is an apocalyptic number.

It is an amenable number.

5638555441 is a deficient number, since it is larger than the sum of its proper divisors (1).

5638555441 is an equidigital number, since it uses as much as digits as its factorization.

5638555441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440000, while the sum is 46.

The square root of 5638555441 is about 75090.3152277309. The cubic root of 5638555441 is about 1779.8741064225.

The spelling of 5638555441 in words is "five billion, six hundred thirty-eight million, five hundred fifty-five thousand, four hundred forty-one".