55956843797 has 2 divisors, whose sum is σ = 55956843798. Its totient is φ = 55956843796.

The previous prime is 55956843781. The next prime is 55956843809. The reversal of 55956843797 is 79734865955.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55752182161 + 204661636 = 236119^2 + 14306^2 .

It is a cyclic number.

It is not a de Polignac number, because 55956843797 - 2⁴ = 55956843781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55956843737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27978421898 + 27978421899.

It is an arithmetic number, because the mean of its divisors is an integer number (27978421899).

Almost surely, 2^55956843797 is an apocalyptic number.

It is an amenable number.

55956843797 is a deficient number, since it is larger than the sum of its proper divisors (1).

55956843797 is an equidigital number, since it uses as much as digits as its factorization.

55956843797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768000, while the sum is 68.

The spelling of 55956843797 in words is "fifty-five billion, nine hundred fifty-six million, eight hundred forty-three thousand, seven hundred ninety-seven".