25921125 has 24 divisors (see below), whose sum is σ = 46729176. Its totient is φ = 13824000.

The previous prime is 25921121. The next prime is 25921151. The reversal of 25921125 is 52112952.

It can be written as a sum of positive squares in 4 ways, for example, as 3481956 + 22439169 = 1866^2 + 4737^2 .

It is not a de Polignac number, because 25921125 - 2² = 25921121 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25921121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10396 + ... + 12645.

It is an arithmetic number, because the mean of its divisors is an integer number (1947049).

Almost surely, 2^25921125 is an apocalyptic number.

25921125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25921125 is a deficient number, since it is larger than the sum of its proper divisors (20808051).

25921125 is a wasteful number, since it uses less digits than its factorization.

25921125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23062 (or 23049 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 25921125 is about 5091.2793087789. The cubic root of 25921125 is about 295.9497304759.

The spelling of 25921125 in words is "twenty-five million, nine hundred twenty-one thousand, one hundred twenty-five".