55103405205 has 8 divisors (see below), whose sum is σ = 88165448352. Its totient is φ = 29388482768.

The previous prime is 55103405183. The next prime is 55103405207. The reversal of 55103405205 is 50250430155.

It is a happy number.

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 55103405205 - 2⁵ = 55103405173 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55103405207) 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 7 ways as a sum of consecutive naturals, for example, 1836780159 + ... + 1836780188.

It is an arithmetic number, because the mean of its divisors is an integer number (11020681044).

Almost surely, 2^55103405205 is an apocalyptic number.

It is an amenable number.

55103405205 is a deficient number, since it is larger than the sum of its proper divisors (33062043147).

55103405205 is a wasteful number, since it uses less digits than its factorization.

55103405205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3673560355.

The product of its (nonzero) digits is 15000, while the sum is 30.

The spelling of 55103405205 in words is "fifty-five billion, one hundred three million, four hundred five thousand, two hundred five".