550130881 has 2 divisors, whose sum is σ = 550130882. Its totient is φ = 550130880.

The previous prime is 550130869. The next prime is 550130887. The reversal of 550130881 is 188031055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 373107856 + 177023025 = 19316^2 + 13305^2 .

It is a cyclic number.

It is not a de Polignac number, because 550130881 - 2⁵ = 550130849 is a prime.

It is a super-2 number, since 2×550130881² = 605287972459672322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (550130887) 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, 275065440 + 275065441.

It is an arithmetic number, because the mean of its divisors is an integer number (275065441).

Almost surely, 2^550130881 is an apocalyptic number.

It is an amenable number.

550130881 is a deficient number, since it is larger than the sum of its proper divisors (1).

550130881 is an equidigital number, since it uses as much as digits as its factorization.

550130881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 550130881 is about 23454.8690254284. The cubic root of 550130881 is about 819.3862554991.

The spelling of 550130881 in words is "five hundred fifty million, one hundred thirty thousand, eight hundred eighty-one".