5255305402409 has 2 divisors, whose sum is σ = 5255305402410. Its totient is φ = 5255305402408.

The previous prime is 5255305402381. The next prime is 5255305402447. The reversal of 5255305402409 is 9042045035525.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4369124160025 + 886181242384 = 2090245^2 + 941372^2 .

It is a cyclic number.

It is not a de Polignac number, because 5255305402409 - 2²⁰ = 5255304353833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5255305402409.

It is not a weakly prime, because it can be changed into another prime (5255305402499) 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, 2627652701204 + 2627652701205.

It is an arithmetic number, because the mean of its divisors is an integer number (2627652701205).

Almost surely, 2^{5255305402409} is an apocalyptic number.

It is an amenable number.

5255305402409 is a deficient number, since it is larger than the sum of its proper divisors (1).

5255305402409 is an equidigital number, since it uses as much as digits as its factorization.

5255305402409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 5255305402409 in words is "five trillion, two hundred fifty-five billion, three hundred five million, four hundred two thousand, four hundred nine".