550635977 has 2 divisors, whose sum is σ = 550635978. Its totient is φ = 550635976.

The previous prime is 550635971. The next prime is 550635989. The reversal of 550635977 is 779536055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 374383801 + 176252176 = 19349^2 + 13276^2 .

It is a cyclic number.

It is not a de Polignac number, because 550635977 - 2⁶ = 550635913 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (550635971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275317988 + 275317989.

It is an arithmetic number, because the mean of its divisors is an integer number (275317989).

Almost surely, 2^550635977 is an apocalyptic number.

It is an amenable number.

550635977 is a deficient number, since it is larger than the sum of its proper divisors (1).

550635977 is an equidigital number, since it uses as much as digits as its factorization.

550635977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 992250, while the sum is 47.

The square root of 550635977 is about 23465.6339569167. The cubic root of 550635977 is about 819.6369486439.

The spelling of 550635977 in words is "five hundred fifty million, six hundred thirty-five thousand, nine hundred seventy-seven".