25302225 has 24 divisors (see below), whose sum is σ = 45052672. Its totient is φ = 12456000.

The previous prime is 25302223. The next prime is 25302241. The reversal of 25302225 is 52220352.

It is not a de Polignac number, because 25302225 - 2¹ = 25302223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25302223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12001 + ... + 13950.

Almost surely, 2^25302225 is an apocalyptic number.

25302225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25302225 is a deficient number, since it is larger than the sum of its proper divisors (19750447).

25302225 is a wasteful number, since it uses less digits than its factorization.

25302225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25977 (or 25972 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 25302225 is about 5030.1317080172. The cubic root of 25302225 is about 293.5753390540.

Adding to 25302225 its reverse (52220352), we get a palindrome (77522577).

The spelling of 25302225 in words is "twenty-five million, three hundred two thousand, two hundred twenty-five".