55285120635709 has 2 divisors, whose sum is σ = 55285120635710. Its totient is φ = 55285120635708.

The previous prime is 55285120635671. The next prime is 55285120635739. The reversal of 55285120635709 is 90753602158255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48160865678809 + 7124254956900 = 6939803^2 + 2669130^2 .

It is a cyclic number.

It is not a de Polignac number, because 55285120635709 - 2²⁵ = 55285087081277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55285120635739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27642560317854 + 27642560317855.

It is an arithmetic number, because the mean of its divisors is an integer number (27642560317855).

Almost surely, 2^{55285120635709} is an apocalyptic number.

It is an amenable number.

55285120635709 is a deficient number, since it is larger than the sum of its proper divisors (1).

55285120635709 is an equidigital number, since it uses as much as digits as its factorization.

55285120635709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680000, while the sum is 58.

The spelling of 55285120635709 in words is "fifty-five trillion, two hundred eighty-five billion, one hundred twenty million, six hundred thirty-five thousand, seven hundred nine".