550550101 has 2 divisors, whose sum is σ = 550550102. Its totient is φ = 550550100.

The previous prime is 550550087. The next prime is 550550107. The reversal of 550550101 is 101055055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 495062500 + 55487601 = 22250^2 + 7449^2 .

It is a cyclic number.

It is not a de Polignac number, because 550550101 - 2⁹ = 550549589 is a prime.

It is a super-2 number, since 2×550550101² = 606210827422220402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550550107) 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, 275275050 + 275275051.

It is an arithmetic number, because the mean of its divisors is an integer number (275275051).

Almost surely, 2^550550101 is an apocalyptic number.

It is an amenable number.

550550101 is a deficient number, since it is larger than the sum of its proper divisors (1).

550550101 is an equidigital number, since it uses as much as digits as its factorization.

550550101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 550550101 is about 23463.8040607230. The cubic root of 550550101 is about 819.5943368247.

The spelling of 550550101 in words is "five hundred fifty million, five hundred fifty thousand, one hundred one".