25315312255 has 32 divisors (see below), whose sum is σ = 32878669824. Its totient is φ = 18638946816.

The previous prime is 25315312249. The next prime is 25315312291. The reversal of 25315312255 is 55221351352.

It is a cyclic number.

It is not a de Polignac number, because 25315312255 - 2³ = 25315312247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25315312255.

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 31 ways as a sum of consecutive naturals, for example, 6322084 + ... + 6326086.

It is an arithmetic number, because the mean of its divisors is an integer number (1027458432).

Almost surely, 2^25315312255 is an apocalyptic number.

25315312255 is a deficient number, since it is larger than the sum of its proper divisors (7563357569).

25315312255 is a wasteful number, since it uses less digits than its factorization.

25315312255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5655.

The product of its digits is 45000, while the sum is 34.

The spelling of 25315312255 in words is "twenty-five billion, three hundred fifteen million, three hundred twelve thousand, two hundred fifty-five".