55810540646797 has 2 divisors, whose sum is σ = 55810540646798. Its totient is φ = 55810540646796.

The previous prime is 55810540646713. The next prime is 55810540646813. The reversal of 55810540646797 is 79764604501855.

55810540646797 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., 52628220029961 + 3182320616836 = 7254531^2 + 1783906^2 .

It is a cyclic number.

It is not a de Polignac number, because 55810540646797 - 2¹⁵ = 55810540614029 is a prime.

It is a super-2 number, since 2×55810540646797² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55810540646297) 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, 27905270323398 + 27905270323399.

It is an arithmetic number, because the mean of its divisors is an integer number (27905270323399).

Almost surely, 2^{55810540646797} is an apocalyptic number.

It is an amenable number.

55810540646797 is a deficient number, since it is larger than the sum of its proper divisors (1).

55810540646797 is an equidigital number, since it uses as much as digits as its factorization.

55810540646797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016000, while the sum is 67.

The spelling of 55810540646797 in words is "fifty-five trillion, eight hundred ten billion, five hundred forty million, six hundred forty-six thousand, seven hundred ninety-seven".