55671822641 has 2 divisors, whose sum is σ = 55671822642. Its totient is φ = 55671822640.

The previous prime is 55671822631. The next prime is 55671822643. The reversal of 55671822641 is 14622817655.

55671822641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55658718241 + 13104400 = 235921^2 + 3620^2 .

It is a cyclic number.

It is not a de Polignac number, because 55671822641 - 2¹⁰ = 55671821617 is a prime.

Together with 55671822643, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55671822643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27835911320 + 27835911321.

It is an arithmetic number, because the mean of its divisors is an integer number (27835911321).

Almost surely, 2^55671822641 is an apocalyptic number.

It is an amenable number.

55671822641 is a deficient number, since it is larger than the sum of its proper divisors (1).

55671822641 is an equidigital number, since it uses as much as digits as its factorization.

55671822641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 47.

The spelling of 55671822641 in words is "fifty-five billion, six hundred seventy-one million, eight hundred twenty-two thousand, six hundred forty-one".