550635545657 has 2 divisors, whose sum is σ = 550635545658. Its totient is φ = 550635545656.

The previous prime is 550635545639. The next prime is 550635545659. The reversal of 550635545657 is 756545536055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 550409674816 + 225870841 = 741896^2 + 15029^2 .

It is a cyclic number.

It is not a de Polignac number, because 550635545657 - 2²² = 550631351353 is a prime.

Together with 550635545659, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (550635545659) 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, 275317772828 + 275317772829.

It is an arithmetic number, because the mean of its divisors is an integer number (275317772829).

Almost surely, 2^550635545657 is an apocalyptic number.

It is an amenable number.

550635545657 is a deficient number, since it is larger than the sum of its proper divisors (1).

550635545657 is an equidigital number, since it uses as much as digits as its factorization.

550635545657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47250000, while the sum is 56.

The spelling of 550635545657 in words is "five hundred fifty billion, six hundred thirty-five million, five hundred forty-five thousand, six hundred fifty-seven".