55105050103 has 4 divisors (see below), whose sum is σ = 55105519840. Its totient is φ = 55104580368.

The previous prime is 55105050101. The next prime is 55105050107. The reversal of 55105050103 is 30105050155.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 30105050155 = 5 ⋅6021010031.

It is a cyclic number.

It is not a de Polignac number, because 55105050103 - 2¹ = 55105050101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55105050101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106018 + ... + 348496.

It is an arithmetic number, because the mean of its divisors is an integer number (13776379960).

Almost surely, 2^55105050103 is an apocalyptic number.

55105050103 is a deficient number, since it is larger than the sum of its proper divisors (469737).

55105050103 is a wasteful number, since it uses less digits than its factorization.

55105050103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469736.

The product of its (nonzero) digits is 1875, while the sum is 25.

The spelling of 55105050103 in words is "fifty-five billion, one hundred five million, fifty thousand, one hundred three".