25850318125 has 40 divisors (see below), whose sum is σ = 34056348480. Its totient is φ = 19576128000.

The previous prime is 25850318119. The next prime is 25850318147. The reversal of 25850318125 is 52181305852.

It is not a de Polignac number, because 25850318125 - 2⁵ = 25850318093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1385106 + ... + 1403644.

It is an arithmetic number, because the mean of its divisors is an integer number (851408712).

Almost surely, 2^25850318125 is an apocalyptic number.

25850318125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25850318125 is a deficient number, since it is larger than the sum of its proper divisors (8206030355).

25850318125 is an equidigital number, since it uses as much as digits as its factorization.

25850318125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18679 (or 18664 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 40.

The spelling of 25850318125 in words is "twenty-five billion, eight hundred fifty million, three hundred eighteen thousand, one hundred twenty-five".