550650649 has 2 divisors, whose sum is σ = 550650650. Its totient is φ = 550650648.

The previous prime is 550650641. The next prime is 550650671. The reversal of 550650649 is 946056055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 460875024 + 89775625 = 21468^2 + 9475^2 .

It is a cyclic number.

It is not a de Polignac number, because 550650649 - 2³ = 550650641 is a prime.

It is a super-2 number, since 2×550650649² = 606432274488242402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (550650641) 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, 275325324 + 275325325.

It is an arithmetic number, because the mean of its divisors is an integer number (275325325).

Almost surely, 2^550650649 is an apocalyptic number.

It is an amenable number.

550650649 is a deficient number, since it is larger than the sum of its proper divisors (1).

550650649 is an equidigital number, since it uses as much as digits as its factorization.

550650649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 550650649 is about 23465.9465822285. The cubic root of 550650649 is about 819.6442284724.

The spelling of 550650649 in words is "five hundred fifty million, six hundred fifty thousand, six hundred forty-nine".