55546921580063 has 4 divisors (see below), whose sum is σ = 55547007046848. Its totient is φ = 55546836113280.

The previous prime is 55546921580027. The next prime is 55546921580069. The reversal of 55546921580063 is 36008512964555.

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 55546921580063 - 2²⁸ = 55546653144607 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55546921579984 and 55546921580011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55546921580069) 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, 41750978 + ... + 43060863.

It is an arithmetic number, because the mean of its divisors is an integer number (13886751761712).

Almost surely, 2^{55546921580063} is an apocalyptic number.

55546921580063 is a deficient number, since it is larger than the sum of its proper divisors (85466785).

55546921580063 is an equidigital number, since it uses as much as digits as its factorization.

55546921580063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85466784.

The product of its (nonzero) digits is 38880000, while the sum is 59.

The spelling of 55546921580063 in words is "fifty-five trillion, five hundred forty-six billion, nine hundred twenty-one million, five hundred eighty thousand, sixty-three".