25415125 has 8 divisors (see below), whose sum is σ = 31718232. Its totient is φ = 20332000.

The previous prime is 25415111. The next prime is 25415129. The reversal of 25415125 is 52151452.

It can be written as a sum of positive squares in 4 ways, for example, as 154449 + 25260676 = 393^2 + 5026^2 .

It is not a de Polignac number, because 25415125 - 2⁷ = 25414997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25415125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25415129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101536 + ... + 101785.

It is an arithmetic number, because the mean of its divisors is an integer number (3964779).

Almost surely, 2^25415125 is an apocalyptic number.

25415125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25415125 is a deficient number, since it is larger than the sum of its proper divisors (6303107).

25415125 is an equidigital number, since it uses as much as digits as its factorization.

25415125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203336 (or 203326 counting only the distinct ones).

The product of its digits is 2000, while the sum is 25.

The square root of 25415125 is about 5041.3415873158. The cubic root of 25415125 is about 294.0113412874.

Adding to 25415125 its reverse (52151452), we get a palindrome (77566577).

The spelling of 25415125 in words is "twenty-five million, four hundred fifteen thousand, one hundred twenty-five".