25505308055305 has 16 divisors (see below), whose sum is σ = 32960921550480. Its totient is φ = 18834565736448.

The previous prime is 25505308055273. The next prime is 25505308055317. The reversal of 25505308055305 is 50355080350552.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6529639859856 + 18975668195449 = 2555316^2 + 4356107^2 .

It is a cyclic number.

It is not a de Polignac number, because 25505308055305 - 2⁵ = 25505308055273 is a prime.

It is a super-3 number, since 3×25505308055305³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 9400689 + ... + 11806081.

It is an arithmetic number, because the mean of its divisors is an integer number (2060057596905).

Almost surely, 2^{25505308055305} is an apocalyptic number.

It is an amenable number.

25505308055305 is a deficient number, since it is larger than the sum of its proper divisors (7455613495175).

25505308055305 is a wasteful number, since it uses less digits than its factorization.

25505308055305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568540.

The product of its (nonzero) digits is 2250000, while the sum is 46.

The spelling of 25505308055305 in words is "twenty-five trillion, five hundred five billion, three hundred eight million, fifty-five thousand, three hundred five".