550115101 has 2 divisors, whose sum is σ = 550115102. Its totient is φ = 550115100.

The previous prime is 550115063. The next prime is 550115107. The reversal of 550115101 is 101511055.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328551876 + 221563225 = 18126^2 + 14885^2 .

It is a cyclic number.

It is not a de Polignac number, because 550115101 - 2¹⁵ = 550082333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550115107) 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, 275057550 + 275057551.

It is an arithmetic number, because the mean of its divisors is an integer number (275057551).

Almost surely, 2^550115101 is an apocalyptic number.

It is an amenable number.

550115101 is a deficient number, since it is larger than the sum of its proper divisors (1).

550115101 is an equidigital number, since it uses as much as digits as its factorization.

550115101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125, while the sum is 19.

The square root of 550115101 is about 23454.5326323080. The cubic root of 550115101 is about 819.3784209763.

Adding to 550115101 its reverse (101511055), we get a palindrome (651626156).

It can be divided in two parts, 5501 and 15101, that added together give a palindrome (20602).

The spelling of 550115101 in words is "five hundred fifty million, one hundred fifteen thousand, one hundred one".