25123825 has 12 divisors (see below), whose sum is σ = 31879408. Its totient is φ = 19630800.

The previous prime is 25123801. The next prime is 25123837. The reversal of 25123825 is 52832152.

It is not a de Polignac number, because 25123825 - 2⁷ = 25123697 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25123793 and 25123802.

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, 10611 + ... + 12760.

Almost surely, 2^25123825 is an apocalyptic number.

25123825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25123825 is a deficient number, since it is larger than the sum of its proper divisors (6755583).

25123825 is a wasteful number, since it uses less digits than its factorization.

25123825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23424 (or 23419 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 25123825 is about 5012.3672052235. The cubic root of 25123825 is about 292.8837343068.

Adding to 25123825 its reverse (52832152), we get a palindrome (77955977).

The spelling of 25123825 in words is "twenty-five million, one hundred twenty-three thousand, eight hundred twenty-five".