25695625 has 10 divisors (see below), whose sum is σ = 32110034. Its totient is φ = 20556000.

The previous prime is 25695617. The next prime is 25695641. The reversal of 25695625 is 52659652.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 6405961 + 19289664 = 2531^2 + 4392^2 .

It is not a de Polignac number, because 25695625 - 2³ = 25695617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19932 + ... + 21181.

Almost surely, 2^25695625 is an apocalyptic number.

25695625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25695625 is a deficient number, since it is larger than the sum of its proper divisors (6414409).

25695625 is an frugal number, since it uses more digits than its factorization.

25695625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41133 (or 41118 counting only the distinct ones).

The product of its digits is 162000, while the sum is 40.

The square root of 25695625 is about 5069.0852231936. The cubic root of 25695625 is about 295.0890279988.

The spelling of 25695625 in words is "twenty-five million, six hundred ninety-five thousand, six hundred twenty-five".