55673545691 has 2 divisors, whose sum is σ = 55673545692. Its totient is φ = 55673545690.

The previous prime is 55673545687. The next prime is 55673545709. The reversal of 55673545691 is 19654537655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55673545691 - 2² = 55673545687 is a prime.

It is not a weakly prime, because it can be changed into another prime (55673545591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27836772845 + 27836772846.

It is an arithmetic number, because the mean of its divisors is an integer number (27836772846).

Almost surely, 2^55673545691 is an apocalyptic number.

55673545691 is a deficient number, since it is larger than the sum of its proper divisors (1).

55673545691 is an equidigital number, since it uses as much as digits as its factorization.

55673545691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17010000, while the sum is 56.

The spelling of 55673545691 in words is "fifty-five billion, six hundred seventy-three million, five hundred forty-five thousand, six hundred ninety-one".