16553103 has 16 divisors (see below), whose sum is σ = 25309440. Its totient is φ = 9426816.

The previous prime is 16553081. The next prime is 16553111. The reversal of 16553103 is 30135561.

It is not a de Polignac number, because 16553103 - 2¹⁰ = 16552079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16553183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5908 + ... + 8246.

It is an arithmetic number, because the mean of its divisors is an integer number (1581840).

Almost surely, 2^16553103 is an apocalyptic number.

16553103 is a deficient number, since it is larger than the sum of its proper divisors (8756337).

16553103 is a wasteful number, since it uses less digits than its factorization.

16553103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 16553103 is about 4068.5504789790. The cubic root of 16553103 is about 254.8549886783.

Adding to 16553103 its reverse (30135561), we get a palindrome (46688664).

The spelling of 16553103 in words is "sixteen million, five hundred fifty-three thousand, one hundred three".