550563656651 has 2 divisors, whose sum is σ = 550563656652. Its totient is φ = 550563656650.

The previous prime is 550563656563. The next prime is 550563656653. The reversal of 550563656651 is 156656365055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550563656651 - 2²⁶ = 550496547787 is a prime.

Together with 550563656653, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 550563656593 and 550563656602.

It is not a weakly prime, because it can be changed into another prime (550563656653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275281828325 + 275281828326.

It is an arithmetic number, because the mean of its divisors is an integer number (275281828326).

Almost surely, 2^550563656651 is an apocalyptic number.

550563656651 is a deficient number, since it is larger than the sum of its proper divisors (1).

550563656651 is an equidigital number, since it uses as much as digits as its factorization.

550563656651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12150000, while the sum is 53.

The spelling of 550563656651 in words is "five hundred fifty billion, five hundred sixty-three million, six hundred fifty-six thousand, six hundred fifty-one".