25707125 has 8 divisors (see below), whose sum is σ = 32082648. Its totient is φ = 20565600.

The previous prime is 25707113. The next prime is 25707127. The reversal of 25707125 is 52170752.

It can be written as a sum of positive squares in 4 ways, for example, as 2686321 + 23020804 = 1639^2 + 4798^2 .

It is not a de Polignac number, because 25707125 - 2⁶ = 25707061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25707127) 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, 102704 + ... + 102953.

It is an arithmetic number, because the mean of its divisors is an integer number (4010331).

Almost surely, 2^25707125 is an apocalyptic number.

25707125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25707125 is a deficient number, since it is larger than the sum of its proper divisors (6375523).

25707125 is an equidigital number, since it uses as much as digits as its factorization.

25707125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205672 (or 205662 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 25707125 is about 5070.2194232597. The cubic root of 25707125 is about 295.1330435034.

Adding to 25707125 its reverse (52170752), we get a palindrome (77877877).

The spelling of 25707125 in words is "twenty-five million, seven hundred seven thousand, one hundred twenty-five".