55168945723 has 2 divisors, whose sum is σ = 55168945724. Its totient is φ = 55168945722.

The previous prime is 55168945631. The next prime is 55168945739. The reversal of 55168945723 is 32754986155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55168945723 - 2⁹ = 55168945211 is a prime.

It is a super-2 number, since 2×55168945723² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55168942723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27584472861 + 27584472862.

It is an arithmetic number, because the mean of its divisors is an integer number (27584472862).

Almost surely, 2^55168945723 is an apocalyptic number.

55168945723 is a deficient number, since it is larger than the sum of its proper divisors (1).

55168945723 is an equidigital number, since it uses as much as digits as its factorization.

55168945723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072000, while the sum is 55.

The spelling of 55168945723 in words is "fifty-five billion, one hundred sixty-eight million, nine hundred forty-five thousand, seven hundred twenty-three".