25325221 has 8 divisors (see below), whose sum is σ = 25674624. Its totient is φ = 24978240.

The previous prime is 25325177. The next prime is 25325227. The reversal of 25325221 is 12252352.

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

It is a cyclic number.

It is not a de Polignac number, because 25325221 - 2¹⁵ = 25292453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25325192 and 25325201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25325227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30210 + ... + 31036.

It is an arithmetic number, because the mean of its divisors is an integer number (3209328).

Almost surely, 2^25325221 is an apocalyptic number.

It is an amenable number.

25325221 is a deficient number, since it is larger than the sum of its proper divisors (349403).

25325221 is a wasteful number, since it uses less digits than its factorization.

25325221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211.

The product of its digits is 1200, while the sum is 22.

The square root of 25325221 is about 5032.4170137221. The cubic root of 25325221 is about 293.6642510540.

Adding to 25325221 its reverse (12252352), we get a palindrome (37577573).

The spelling of 25325221 in words is "twenty-five million, three hundred twenty-five thousand, two hundred twenty-one".