25271166 has 8 divisors (see below), whose sum is σ = 50542344. Its totient is φ = 8423720.

The previous prime is 25271161. The next prime is 25271167. The reversal of 25271166 is 66117252.

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

25271166 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25271161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2105925 + ... + 2105936.

It is an arithmetic number, because the mean of its divisors is an integer number (6317793).

Almost surely, 2^25271166 is an apocalyptic number.

25271166 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.

25271166 is a wasteful number, since it uses less digits than its factorization.

25271166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211866.

The product of its digits is 5040, while the sum is 30.

The square root of 25271166 is about 5027.0434650995. The cubic root of 25271166 is about 293.4551666198.

The spelling of 25271166 in words is "twenty-five million, two hundred seventy-one thousand, one hundred sixty-six".