25668225 has 48 divisors (see below), whose sum is σ = 51455040. Its totient is φ = 12441600.

The previous prime is 25668211. The next prime is 25668229. The reversal of 25668225 is 52286652.

It is not a de Polignac number, because 25668225 - 2⁵ = 25668193 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25668225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25668229) 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 47 ways as a sum of consecutive naturals, for example, 5697 + ... + 9153.

It is an arithmetic number, because the mean of its divisors is an integer number (1071980).

Almost surely, 2^25668225 is an apocalyptic number.

25668225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25668225 is an abundant number, since it is smaller than the sum of its proper divisors (25786815).

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

25668225 is a wasteful number, since it uses less digits than its factorization.

25668225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487 (or 3476 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 25668225 is about 5066.3818450646. The cubic root of 25668225 is about 294.9841033280.

The spelling of 25668225 in words is "twenty-five million, six hundred sixty-eight thousand, two hundred twenty-five".