55720675117 has 2 divisors, whose sum is σ = 55720675118. Its totient is φ = 55720675116.

The previous prime is 55720675097. The next prime is 55720675133. The reversal of 55720675117 is 71157602755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42474736836 + 13245938281 = 206094^2 + 115091^2 .

It is a cyclic number.

It is not a de Polignac number, because 55720675117 - 2³⁵ = 21360936749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55720675177) 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, 27860337558 + 27860337559.

It is an arithmetic number, because the mean of its divisors is an integer number (27860337559).

Almost surely, 2^55720675117 is an apocalyptic number.

It is an amenable number.

55720675117 is a deficient number, since it is larger than the sum of its proper divisors (1).

55720675117 is an equidigital number, since it uses as much as digits as its factorization.

55720675117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 514500, while the sum is 46.

The spelling of 55720675117 in words is "fifty-five billion, seven hundred twenty million, six hundred seventy-five thousand, one hundred seventeen".