25312125 has 16 divisors (see below), whose sum is σ = 42120000. Its totient is φ = 13499600.

The previous prime is 25312117. The next prime is 25312141. The reversal of 25312125 is 52121352.

It is not a de Polignac number, because 25312125 - 2³ = 25312117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33375 + ... + 34124.

It is an arithmetic number, because the mean of its divisors is an integer number (2632500).

Almost surely, 2^25312125 is an apocalyptic number.

25312125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25312125 is a deficient number, since it is larger than the sum of its proper divisors (16807875).

25312125 is an equidigital number, since it uses as much as digits as its factorization.

25312125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67517 (or 67507 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 25312125 is about 5031.1156814369. The cubic root of 25312125 is about 293.6136231295.

Adding to 25312125 its reverse (52121352), we get a palindrome (77433477).

It can be divided in two parts, 2531 and 2125, that added together give a triangular number (4656 = T₉₆).

The spelling of 25312125 in words is "twenty-five million, three hundred twelve thousand, one hundred twenty-five".