55050555503 has 8 divisors (see below), whose sum is σ = 55958100000. Its totient is φ = 54143174880.

The previous prime is 55050555491. The next prime is 55050555587. The reversal of 55050555503 is 30555505055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55050555503 - 2²⁰ = 55049506927 is a prime.

It is a super-2 number, since 2×55050555503² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55050557503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766373 + ... + 835121.

It is an arithmetic number, because the mean of its divisors is an integer number (6994762500).

Almost surely, 2^55050555503 is an apocalyptic number.

55050555503 is a deficient number, since it is larger than the sum of its proper divisors (907544497).

55050555503 is a wasteful number, since it uses less digits than its factorization.

55050555503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81937.

The product of its (nonzero) digits is 234375, while the sum is 38.

The spelling of 55050555503 in words is "fifty-five billion, fifty million, five hundred fifty-five thousand, five hundred three".