55318099203 has 32 divisors (see below), whose sum is σ = 84897792000. Its totient is φ = 35561937600.

The previous prime is 55318099183. The next prime is 55318099237. The reversal of 55318099203 is 30299081355.

55318099203 is a `hidden beast` number, since 5 + 531 + 8 + 0 + 99 + 20 + 3 = 666.

It is a Cunningham number, because it is equal to 235198²-1.

It is not a de Polignac number, because 55318099203 - 2⁶ = 55318099139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55318199203) 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 31 ways as a sum of consecutive naturals, for example, 117598 + ... + 352796.

It is an arithmetic number, because the mean of its divisors is an integer number (2653056000).

Almost surely, 2^55318099203 is an apocalyptic number.

55318099203 is a deficient number, since it is larger than the sum of its proper divisors (29579692797).

55318099203 is a wasteful number, since it uses less digits than its factorization.

55318099203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235520 (or 235514 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 55318099203 in words is "fifty-five billion, three hundred eighteen million, ninety-nine thousand, two hundred three".