550380877 has 2 divisors, whose sum is σ = 550380878. Its totient is φ = 550380876.

The previous prime is 550380871. The next prime is 550380881. The reversal of 550380877 is 778083055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 540609001 + 9771876 = 23251^2 + 3126^2 .

It is a cyclic number.

It is not a de Polignac number, because 550380877 - 2⁷ = 550380749 is a prime.

It is equal to p_28864384 and since 550380877 and 28864384 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550380871) 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, 275190438 + 275190439.

It is an arithmetic number, because the mean of its divisors is an integer number (275190439).

Almost surely, 2^550380877 is an apocalyptic number.

It is an amenable number.

550380877 is a deficient number, since it is larger than the sum of its proper divisors (1).

550380877 is an equidigital number, since it uses as much as digits as its factorization.

550380877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 550380877 is about 23460.1977186894. The cubic root of 550380877 is about 819.5103546133.

The spelling of 550380877 in words is "five hundred fifty million, three hundred eighty thousand, eight hundred seventy-seven".