550555501 has 2 divisors, whose sum is σ = 550555502. Its totient is φ = 550555500.

The previous prime is 550555477. The next prime is 550555519. The reversal of 550555501 is 105555055.

550555501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 480749476 + 69806025 = 21926^2 + 8355^2 .

It is a cyclic number.

It is not a de Polignac number, because 550555501 - 2⁹ = 550554989 is a prime.

It is a super-2 number, since 2×550555501² = 606222719362722002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550558501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275277750 + 275277751.

It is an arithmetic number, because the mean of its divisors is an integer number (275277751).

Almost surely, 2^550555501 is an apocalyptic number.

It is an amenable number.

550555501 is a deficient number, since it is larger than the sum of its proper divisors (1).

550555501 is an equidigital number, since it uses as much as digits as its factorization.

550555501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15625, while the sum is 31.

The square root of 550555501 is about 23463.9191312960. The cubic root of 550555501 is about 819.5970164445.

The spelling of 550555501 in words is "five hundred fifty million, five hundred fifty-five thousand, five hundred one".