550960121 has 2 divisors, whose sum is σ = 550960122. Its totient is φ = 550960120.

The previous prime is 550960087. The next prime is 550960153. The reversal of 550960121 is 121069055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 469328896 + 81631225 = 21664^2 + 9035^2 .

It is a cyclic number.

It is not a de Polignac number, because 550960121 - 2⁶ = 550960057 is a prime.

It is not a weakly prime, because it can be changed into another prime (550960321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275480060 + 275480061.

It is an arithmetic number, because the mean of its divisors is an integer number (275480061).

Almost surely, 2^550960121 is an apocalyptic number.

It is an amenable number.

550960121 is a deficient number, since it is larger than the sum of its proper divisors (1).

550960121 is an equidigital number, since it uses as much as digits as its factorization.

550960121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 550960121 is about 23472.5397219815. The cubic root of 550960121 is about 819.7977495446.

The spelling of 550960121 in words is "five hundred fifty million, nine hundred sixty thousand, one hundred twenty-one".