25903225 has 6 divisors (see below), whose sum is σ = 32120030. Its totient is φ = 20722560.

The previous prime is 25903211. The next prime is 25903249. The reversal of 25903225 is 52230952.

It can be written as a sum of positive squares in 3 ways, for example, as 56169 + 25847056 = 237^2 + 5084^2 .

It is not a de Polignac number, because 25903225 - 2⁵ = 25903193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25903193 and 25903202.

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 5 ways as a sum of consecutive naturals, for example, 518040 + ... + 518089.

Almost surely, 2^25903225 is an apocalyptic number.

25903225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25903225 is a deficient number, since it is larger than the sum of its proper divisors (6216805).

25903225 is a wasteful number, since it uses less digits than its factorization.

25903225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036139 (or 1036134 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 25903225 is about 5089.5210973136. The cubic root of 25903225 is about 295.8815914574.

The spelling of 25903225 in words is "twenty-five million, nine hundred three thousand, two hundred twenty-five".