25951825 has 6 divisors (see below), whose sum is σ = 32180294. Its totient is φ = 20761440.

The previous prime is 25951823. The next prime is 25951829. The reversal of 25951825 is 52815952.

It can be written as a sum of positive squares in 3 ways, for example, as 1971216 + 23980609 = 1404^2 + 4897^2 .

It is not a de Polignac number, because 25951825 - 2¹ = 25951823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25951823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 519012 + ... + 519061.

Almost surely, 2^25951825 is an apocalyptic number.

25951825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25951825 is a deficient number, since it is larger than the sum of its proper divisors (6228469).

25951825 is a wasteful number, since it uses less digits than its factorization.

25951825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038083 (or 1038078 counting only the distinct ones).

The product of its digits is 36000, while the sum is 37.

The square root of 25951825 is about 5094.2933759257. The cubic root of 25951825 is about 296.0665216026.

The spelling of 25951825 in words is "twenty-five million, nine hundred fifty-one thousand, eight hundred twenty-five".