55550120103 has 48 divisors (see below), whose sum is σ = 82487808000. Its totient is φ = 36006871680.

The previous prime is 55550120033. The next prime is 55550120141. The reversal of 55550120103 is 30102105555.

55550120103 is a `hidden beast` number, since 5 + 5 + 550 + 1 + 2 + 0 + 103 = 666.

It is not a de Polignac number, because 55550120103 - 2¹² = 55550116007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55550120173) 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 47 ways as a sum of consecutive naturals, for example, 68664763 + ... + 68665571.

It is an arithmetic number, because the mean of its divisors is an integer number (1718496000).

Almost surely, 2^55550120103 is an apocalyptic number.

55550120103 is a deficient number, since it is larger than the sum of its proper divisors (26937687897).

55550120103 is a wasteful number, since it uses less digits than its factorization.

55550120103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732 (or 1729 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

Adding to 55550120103 its reverse (30102105555), we get a palindrome (85652225658).

The spelling of 55550120103 in words is "fifty-five billion, five hundred fifty million, one hundred twenty thousand, one hundred three".