25023825 has 18 divisors (see below), whose sum is σ = 44820854. Its totient is φ = 13345920.

The previous prime is 25023821. The next prime is 25023841. The reversal of 25023825 is 52832052.

It can be written as a sum of positive squares in 3 ways, for example, as 3873024 + 21150801 = 1968^2 + 4599^2 .

It is not a de Polignac number, because 25023825 - 2² = 25023821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25023821) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 55384 + ... + 55833.

Almost surely, 2^25023825 is an apocalyptic number.

25023825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25023825 is a deficient number, since it is larger than the sum of its proper divisors (19797029).

25023825 is a wasteful number, since it uses less digits than its factorization.

25023825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111233 (or 111225 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 25023825 is about 5002.3819326397. The cubic root of 25023825 is about 292.4946306268.

Adding to 25023825 its reverse (52832052), we get a palindrome (77855877).

The spelling of 25023825 in words is "twenty-five million, twenty-three thousand, eight hundred twenty-five".