25633225 has 12 divisors (see below), whose sum is σ = 31858204. Its totient is φ = 20459520.

The previous prime is 25633219. The next prime is 25633243. The reversal of 25633225 is 52233652.

It can be written as a sum of positive squares in 6 ways, for example, as 1140624 + 24492601 = 1068^2 + 4949^2 .

It is not a de Polignac number, because 25633225 - 2⁹ = 25632713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25633193 and 25633202.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13537 + ... + 15313.

Almost surely, 2^25633225 is an apocalyptic number.

25633225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25633225 is a deficient number, since it is larger than the sum of its proper divisors (6224979).

25633225 is a wasteful number, since it uses less digits than its factorization.

25633225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364 (or 2359 counting only the distinct ones).

The product of its digits is 10800, while the sum is 28.

The square root of 25633225 is about 5062.9265252421. The cubic root of 25633225 is about 294.8499667990.

Adding to 25633225 its reverse (52233652), we get a palindrome (77866877).

The spelling of 25633225 in words is "twenty-five million, six hundred thirty-three thousand, two hundred twenty-five".