25259225 has 12 divisors (see below), whose sum is σ = 31536300. Its totient is φ = 20068800.

The previous prime is 25259209. The next prime is 25259243. The reversal of 25259225 is 52295252.

It can be written as a sum of positive squares in 6 ways, for example, as 3701776 + 21557449 = 1924^2 + 4643^2 .

It is not a de Polignac number, because 25259225 - 2⁴ = 25259209 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25259191 and 25259200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335 + ... + 7115.

It is an arithmetic number, because the mean of its divisors is an integer number (2628025).

Almost surely, 2^25259225 is an apocalyptic number.

25259225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25259225 is a deficient number, since it is larger than the sum of its proper divisors (6277075).

25259225 is a wasteful number, since it uses less digits than its factorization.

25259225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6940 (or 6935 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 25259225 is about 5025.8556485438. The cubic root of 25259225 is about 293.4089387012.

The spelling of 25259225 in words is "twenty-five million, two hundred fifty-nine thousand, two hundred twenty-five".