550705777 has 2 divisors, whose sum is σ = 550705778. Its totient is φ = 550705776.

The previous prime is 550705751. The next prime is 550705787. The reversal of 550705777 is 777507055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 506070016 + 44635761 = 22496^2 + 6681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550705777 is a prime.

It is not a weakly prime, because it can be changed into another prime (550705717) 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, 275352888 + 275352889.

It is an arithmetic number, because the mean of its divisors is an integer number (275352889).

Almost surely, 2^550705777 is an apocalyptic number.

It is an amenable number.

550705777 is a deficient number, since it is larger than the sum of its proper divisors (1).

550705777 is an equidigital number, since it uses as much as digits as its factorization.

550705777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300125, while the sum is 43.

The square root of 550705777 is about 23467.1211911474. The cubic root of 550705777 is about 819.6715802603.

The spelling of 550705777 in words is "five hundred fifty million, seven hundred five thousand, seven hundred seventy-seven".