8550885839 has 2 divisors, whose sum is σ = 8550885840. Its totient is φ = 8550885838.

The previous prime is 8550885829. The next prime is 8550885853. The reversal of 8550885839 is 9385880558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8550885839 - 2⁸ = 8550885583 is a prime.

It is a super-2 number, since 2×8550885839² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8550885809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4275442919 + 4275442920.

It is an arithmetic number, because the mean of its divisors is an integer number (4275442920).

Almost surely, 2^8550885839 is an apocalyptic number.

8550885839 is a deficient number, since it is larger than the sum of its proper divisors (1).

8550885839 is an equidigital number, since it uses as much as digits as its factorization.

8550885839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824000, while the sum is 59.

The square root of 8550885839 is about 92470.9999891858. Note that the first 4 decimals coincide. The cubic root of 8550885839 is about 2044.8919695923.

The spelling of 8550885839 in words is "eight billion, five hundred fifty million, eight hundred eighty-five thousand, eight hundred thirty-nine".