25743225 has 12 divisors (see below), whose sum is σ = 42562256. Its totient is φ = 13729680.

The previous prime is 25743191. The next prime is 25743227. The reversal of 25743225 is 52234752.

It is not a de Polignac number, because 25743225 - 2¹⁸ = 25481081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25743192 and 25743201.

It is not an unprimeable number, because it can be changed into a prime (25743227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171547 + ... + 171696.

Almost surely, 2^25743225 is an apocalyptic number.

25743225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25743225 is a deficient number, since it is larger than the sum of its proper divisors (16819031).

25743225 is a wasteful number, since it uses less digits than its factorization.

25743225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343256 (or 343251 counting only the distinct ones).

The product of its digits is 16800, while the sum is 30.

The square root of 25743225 is about 5073.7781780444. The cubic root of 25743225 is about 295.2711286911.

Adding to 25743225 its reverse (52234752), we get a palindrome (77977977).

The spelling of 25743225 in words is "twenty-five million, seven hundred forty-three thousand, two hundred twenty-five".