550642277 has 2 divisors, whose sum is σ = 550642278. Its totient is φ = 550642276.

The previous prime is 550642217. The next prime is 550642283. The reversal of 550642277 is 772246055.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 498137761 + 52504516 = 22319^2 + 7246^2 .

It is a cyclic number.

It is not a de Polignac number, because 550642277 - 2²² = 546447973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 550642277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550642217) 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, 275321138 + 275321139.

It is an arithmetic number, because the mean of its divisors is an integer number (275321139).

Almost surely, 2^550642277 is an apocalyptic number.

It is an amenable number.

550642277 is a deficient number, since it is larger than the sum of its proper divisors (1).

550642277 is an equidigital number, since it uses as much as digits as its factorization.

550642277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 550642277 is about 23465.7681953948. The cubic root of 550642277 is about 819.6400745403.

The spelling of 550642277 in words is "five hundred fifty million, six hundred forty-two thousand, two hundred seventy-seven".