25136125 has 32 divisors (see below), whose sum is σ = 37440000. Its totient is φ = 16473600.

The previous prime is 25136113. The next prime is 25136129. The reversal of 25136125 is 52163152.

It is not a de Polignac number, because 25136125 - 2⁵ = 25136093 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25136125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25136129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19501 + ... + 20749.

It is an arithmetic number, because the mean of its divisors is an integer number (1170000).

Almost surely, 2^25136125 is an apocalyptic number.

25136125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25136125 is a deficient number, since it is larger than the sum of its proper divisors (12303875).

25136125 is a wasteful number, since it uses less digits than its factorization.

25136125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294 (or 1284 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 25136125 is about 5013.5940202613. The cubic root of 25136125 is about 292.9315227068.

Adding to 25136125 its reverse (52163152), we get a palindrome (77299277).

The spelling of 25136125 in words is "twenty-five million, one hundred thirty-six thousand, one hundred twenty-five".