25322166 has 32 divisors (see below), whose sum is σ = 56517120. Its totient is φ = 8403912.

The previous prime is 25322161. The next prime is 25322177. The reversal of 25322166 is 66122352.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25322161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13311 + ... + 15093.

It is an arithmetic number, because the mean of its divisors is an integer number (1766160).

Almost surely, 2^25322166 is an apocalyptic number.

25322166 is an abundant number, since it is smaller than the sum of its proper divisors (31194954).

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

25322166 is a wasteful number, since it uses less digits than its factorization.

25322166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057 (or 2051 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 25322166 is about 5032.1134724885. The cubic root of 25322166 is about 293.6524422678.

The spelling of 25322166 in words is "twenty-five million, three hundred twenty-two thousand, one hundred sixty-six".