25210125 has 24 divisors (see below), whose sum is σ = 45447480. Its totient is φ = 13444800.

The previous prime is 25210123. The next prime is 25210151. The reversal of 25210125 is 52101252.

It can be written as a sum of positive squares in 4 ways, for example, as 826281 + 24383844 = 909^2 + 4938^2 .

It is not a de Polignac number, because 25210125 - 2¹ = 25210123 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 25210098 and 25210107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25210123) 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, 10080 + ... + 12329.

It is an arithmetic number, because the mean of its divisors is an integer number (1893645).

Almost surely, 2^25210125 is an apocalyptic number.

25210125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25210125 is a deficient number, since it is larger than the sum of its proper divisors (20237355).

25210125 is a wasteful number, since it uses less digits than its factorization.

25210125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22430 (or 22417 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 25210125 is about 5020.9685320663. The cubic root of 25210125 is about 293.2187016219.

Adding to 25210125 its reverse (52101252), we get a palindrome (77311377).

The spelling of 25210125 in words is "twenty-five million, two hundred ten thousand, one hundred twenty-five".