550001149 has 2 divisors, whose sum is σ = 550001150. Its totient is φ = 550001148.

The previous prime is 550001147. The next prime is 550001209. The reversal of 550001149 is 941100055.

550001149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 322202500 + 227798649 = 17950^2 + 15093^2 .

It is a cyclic number.

It is not a de Polignac number, because 550001149 - 2¹ = 550001147 is a prime.

Together with 550001147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550001143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275000574 + 275000575.

It is an arithmetic number, because the mean of its divisors is an integer number (275000575).

Almost surely, 2^550001149 is an apocalyptic number.

It is an amenable number.

550001149 is a deficient number, since it is larger than the sum of its proper divisors (1).

550001149 is an equidigital number, since it uses as much as digits as its factorization.

550001149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 550001149 is about 23452.1032958667. The cubic root of 550001149 is about 819.3218411458.

The spelling of 550001149 in words is "five hundred fifty million, one thousand, one hundred forty-nine".