25820925325 has 48 divisors (see below), whose sum is σ = 35718713856. Its totient is φ = 18387590400.

The previous prime is 25820925289. The next prime is 25820925341. The reversal of 25820925325 is 52352902852.

It is not a de Polignac number, because 25820925325 - 2¹¹ = 25820923277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2947602 + ... + 2956348.

It is an arithmetic number, because the mean of its divisors is an integer number (744139872).

Almost surely, 2^25820925325 is an apocalyptic number.

25820925325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25820925325 is a deficient number, since it is larger than the sum of its proper divisors (9897788531).

25820925325 is a wasteful number, since it uses less digits than its factorization.

25820925325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9094 (or 9089 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 25820925325 in words is "twenty-five billion, eight hundred twenty million, nine hundred twenty-five thousand, three hundred twenty-five".