550077149 has 2 divisors, whose sum is σ = 550077150. Its totient is φ = 550077148.

The previous prime is 550077139. The next prime is 550077163. The reversal of 550077149 is 941770055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315772900 + 234304249 = 17770^2 + 15307^2 .

It is a cyclic number.

It is not a de Polignac number, because 550077149 - 2¹⁶ = 550011613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550077139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275038574 + 275038575.

It is an arithmetic number, because the mean of its divisors is an integer number (275038575).

Almost surely, 2^550077149 is an apocalyptic number.

It is an amenable number.

550077149 is a deficient number, since it is larger than the sum of its proper divisors (1).

550077149 is an equidigital number, since it uses as much as digits as its factorization.

550077149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 550077149 is about 23453.7235636476. The cubic root of 550077149 is about 819.3595777894.

The spelling of 550077149 in words is "five hundred fifty million, seventy-seven thousand, one hundred forty-nine".