25163825 has 12 divisors (see below), whose sum is σ = 33039180. Its totient is φ = 18946560.

The previous prime is 25163821. The next prime is 25163833. The reversal of 25163825 is 52836152.

It can be written as a sum of positive squares in 6 ways, for example, as 43681 + 25120144 = 209^2 + 5012^2 .

It is not a de Polignac number, because 25163825 - 2² = 25163821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25163791 and 25163800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25163821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29180 + ... + 30029.

It is an arithmetic number, because the mean of its divisors is an integer number (2753265).

Almost surely, 2^25163825 is an apocalyptic number.

25163825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25163825 is a deficient number, since it is larger than the sum of its proper divisors (7875355).

25163825 is a wasteful number, since it uses less digits than its factorization.

25163825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59236 (or 59231 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 25163825 is about 5016.3557489476. The cubic root of 25163825 is about 293.0390866794.

Adding to 25163825 its reverse (52836152), we get a palindrome (77999977).

The spelling of 25163825 in words is "twenty-five million, one hundred sixty-three thousand, eight hundred twenty-five".