551103 has 24 divisors (see below), whose sum is σ = 897408. Its totient is φ = 299376.

The previous prime is 551099. The next prime is 551107. The reversal of 551103 is 301155.

It is an interprime number because it is at equal distance from previous prime (551099) and next prime (551107).

It is not a de Polignac number, because 551103 - 2² = 551099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3300 + ... + 3462.

It is an arithmetic number, because the mean of its divisors is an integer number (37392).

2⁵⁵¹¹⁰³ is an apocalyptic number.

551103 is a deficient number, since it is larger than the sum of its proper divisors (346305).

551103 is a wasteful number, since it uses less digits than its factorization.

551103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 551103 is about 742.3631186960. The cubic root of 551103 is about 81.9868608732.

Adding to 551103 its reverse (301155), we get a palindrome (852258).

The spelling of 551103 in words is "five hundred fifty-one thousand, one hundred three".