550115103 has 4 divisors (see below), whose sum is σ = 733486808. Its totient is φ = 366743400.

The previous prime is 550115101. The next prime is 550115107. The reversal of 550115103 is 301511055.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 550115103 - 2¹ = 550115101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550115103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550115101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91685848 + ... + 91685853.

It is an arithmetic number, because the mean of its divisors is an integer number (183371702).

Almost surely, 2^550115103 is an apocalyptic number.

550115103 is a deficient number, since it is larger than the sum of its proper divisors (183371705).

550115103 is a wasteful number, since it uses less digits than its factorization.

550115103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183371704.

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 550115103 is about 23454.5326749437. The cubic root of 550115103 is about 819.3784219693.

Adding to 550115103 its reverse (301511055), we get a palindrome (851626158).

The spelling of 550115103 in words is "five hundred fifty million, one hundred fifteen thousand, one hundred three".