55358214911999 has 4 divisors (see below), whose sum is σ = 57143963780160. Its totient is φ = 53572466043840.

The previous prime is 55358214911977. The next prime is 55358214912001. The reversal of 55358214911999 is 99911941285355.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55358214911999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55358214911099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892874434034 + ... + 892874434095.

It is an arithmetic number, because the mean of its divisors is an integer number (14285990945040).

Almost surely, 2^{55358214911999} is an apocalyptic number.

55358214911999 is a deficient number, since it is larger than the sum of its proper divisors (1785748868161).

55358214911999 is a wasteful number, since it uses less digits than its factorization.

55358214911999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785748868160.

The product of its digits is 157464000, while the sum is 71.

The spelling of 55358214911999 in words is "fifty-five trillion, three hundred fifty-eight billion, two hundred fourteen million, nine hundred eleven thousand, nine hundred ninety-nine".