25925210166 has 8 divisors (see below), whose sum is σ = 51850420344. Its totient is φ = 8641736720.

The previous prime is 25925210153. The next prime is 25925210167. The reversal of 25925210166 is 66101252952.

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

25925210166 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25925210167) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2160434175 + ... + 2160434186.

It is an arithmetic number, because the mean of its divisors is an integer number (6481302543).

Almost surely, 2^25925210166 is an apocalyptic number.

25925210166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25925210166 is a wasteful number, since it uses less digits than its factorization.

25925210166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4320868366.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 25925210166 in words is "twenty-five billion, nine hundred twenty-five million, two hundred ten thousand, one hundred sixty-six".