25225321 has 8 divisors (see below), whose sum is σ = 27628704. Its totient is φ = 22840320.

The previous prime is 25225313. The next prime is 25225337. The reversal of 25225321 is 12352252.

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 25225321 - 2³ = 25225313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25225292 and 25225301.

It is not an unprimeable number, because it can be changed into a prime (25225301) 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, 1635 + ... + 7288.

It is an arithmetic number, because the mean of its divisors is an integer number (3453588).

Almost surely, 2^25225321 is an apocalyptic number.

It is an amenable number.

25225321 is a deficient number, since it is larger than the sum of its proper divisors (2403383).

25225321 is a wasteful number, since it uses less digits than its factorization.

25225321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9191.

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

The square root of 25225321 is about 5022.4815579552. The cubic root of 25225321 is about 293.2776046277.

Adding to 25225321 its reverse (12352252), we get a palindrome (37577573).

The spelling of 25225321 in words is "twenty-five million, two hundred twenty-five thousand, three hundred twenty-one".