25505530255 has 8 divisors (see below), whose sum is σ = 30607582752. Its totient is φ = 20403793248.

The previous prime is 25505530249. The next prime is 25505530273. The reversal of 25505530255 is 55203550552.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25505530255 - 2¹⁵ = 25505497487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 170902 + ... + 283228.

It is an arithmetic number, because the mean of its divisors is an integer number (3825947844).

Almost surely, 2^25505530255 is an apocalyptic number.

25505530255 is a deficient number, since it is larger than the sum of its proper divisors (5102052497).

25505530255 is a wasteful number, since it uses less digits than its factorization.

25505530255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157745.

The product of its (nonzero) digits is 187500, while the sum is 37.

The spelling of 25505530255 in words is "twenty-five billion, five hundred five million, five hundred thirty thousand, two hundred fifty-five".