550688155439 has 2 divisors, whose sum is σ = 550688155440. Its totient is φ = 550688155438.

The previous prime is 550688155429. The next prime is 550688155447. The reversal of 550688155439 is 934551886055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550688155439 - 2³⁶ = 481968678703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550688155429) 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, 275344077719 + 275344077720.

It is an arithmetic number, because the mean of its divisors is an integer number (275344077720).

Almost surely, 2^550688155439 is an apocalyptic number.

550688155439 is a deficient number, since it is larger than the sum of its proper divisors (1).

550688155439 is an equidigital number, since it uses as much as digits as its factorization.

550688155439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920000, while the sum is 59.

The spelling of 550688155439 in words is "five hundred fifty billion, six hundred eighty-eight million, one hundred fifty-five thousand, four hundred thirty-nine".