55398316205 has 8 divisors (see below), whose sum is σ = 68023979232. Its totient is φ = 43287986448.

The previous prime is 55398316187. The next prime is 55398316217. The reversal of 55398316205 is 50261389355.

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 55398316205 - 2¹⁶ = 55398250669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55398316205.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 128833079 + ... + 128833508.

It is an arithmetic number, because the mean of its divisors is an integer number (8502997404).

Almost surely, 2^55398316205 is an apocalyptic number.

It is an amenable number.

55398316205 is a deficient number, since it is larger than the sum of its proper divisors (12625663027).

55398316205 is a wasteful number, since it uses less digits than its factorization.

55398316205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257666635.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 55398316205 in words is "fifty-five billion, three hundred ninety-eight million, three hundred sixteen thousand, two hundred five".