55616722757 has 2 divisors, whose sum is σ = 55616722758. Its totient is φ = 55616722756.

The previous prime is 55616722747. The next prime is 55616722789. The reversal of 55616722757 is 75722761655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43258176196 + 12358546561 = 207986^2 + 111169^2 .

It is a cyclic number.

It is not a de Polignac number, because 55616722757 - 2¹⁰ = 55616721733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55616722699 and 55616722708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55616722747) 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, 27808361378 + 27808361379.

It is an arithmetic number, because the mean of its divisors is an integer number (27808361379).

Almost surely, 2^55616722757 is an apocalyptic number.

It is an amenable number.

55616722757 is a deficient number, since it is larger than the sum of its proper divisors (1).

55616722757 is an equidigital number, since it uses as much as digits as its factorization.

55616722757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6174000, while the sum is 53.

The spelling of 55616722757 in words is "fifty-five billion, six hundred sixteen million, seven hundred twenty-two thousand, seven hundred fifty-seven".