25216325287 has 8 divisors (see below), whose sum is σ = 26573211360. Its totient is φ = 23881149600.

The previous prime is 25216325231. The next prime is 25216325291. The reversal of 25216325287 is 78252361252.

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 25216325287 - 2²⁷ = 25082107559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25216325227) 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 in 7 ways as a sum of consecutive naturals, for example, 5425212 + ... + 5429857.

It is an arithmetic number, because the mean of its divisors is an integer number (3321651420).

Almost surely, 2^25216325287 is an apocalyptic number.

25216325287 is a deficient number, since it is larger than the sum of its proper divisors (1356886073).

25216325287 is a wasteful number, since it uses less digits than its factorization.

25216325287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10855193.

The product of its digits is 403200, while the sum is 43.

The spelling of 25216325287 in words is "twenty-five billion, two hundred sixteen million, three hundred twenty-five thousand, two hundred eighty-seven".