55651823172863 has 4 divisors (see below), whose sum is σ = 55651855783920. Its totient is φ = 55651790561808.

The previous prime is 55651823172851. The next prime is 55651823172991. The reversal of 55651823172863 is 36827132815655.

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

It is a cyclic number.

It is not a de Polignac number, because 55651823172863 - 2⁴⁰ = 54552311545087 is a prime.

It is a super-2 number, since 2×55651823172863² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55651823172796 and 55651823172805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55651823172263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13595603 + ... + 17208836.

It is an arithmetic number, because the mean of its divisors is an integer number (13912963945980).

Almost surely, 2^{55651823172863} is an apocalyptic number.

55651823172863 is a deficient number, since it is larger than the sum of its proper divisors (32611057).

55651823172863 is a wasteful number, since it uses less digits than its factorization.

55651823172863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32611056.

The product of its digits is 72576000, while the sum is 62.

The spelling of 55651823172863 in words is "fifty-five trillion, six hundred fifty-one billion, eight hundred twenty-three million, one hundred seventy-two thousand, eight hundred sixty-three".