55817119803 has 16 divisors (see below), whose sum is σ = 74901404160. Its totient is φ = 36972403104.

The previous prime is 55817119753. The next prime is 55817119819. The reversal of 55817119803 is 30891171855.

It is a happy number.

It is not a de Polignac number, because 55817119803 - 2¹⁰ = 55817118779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55817119823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787608 + ... + 855546.

It is an arithmetic number, because the mean of its divisors is an integer number (4681337760).

Almost surely, 2^55817119803 is an apocalyptic number.

55817119803 is a deficient number, since it is larger than the sum of its proper divisors (19084284357).

55817119803 is a wasteful number, since it uses less digits than its factorization.

55817119803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69698.

The product of its (nonzero) digits is 302400, while the sum is 48.

The spelling of 55817119803 in words is "fifty-five billion, eight hundred seventeen million, one hundred nineteen thousand, eight hundred three".