25145125 has 16 divisors (see below), whose sum is σ = 33229872. Its totient is φ = 18931200.

The previous prime is 25145053. The next prime is 25145129. The reversal of 25145125 is 52154152.

It can be written as a sum of positive squares in 8 ways, for example, as 850084 + 24295041 = 922^2 + 4929^2 .

It is not a de Polignac number, because 25145125 - 2⁷ = 25144997 is a prime.

It is a super-2 number, since 2×25145125² = 1264554622531250, which contains 22 as substring.

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 25145125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25145129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3792 + ... + 8041.

It is an arithmetic number, because the mean of its divisors is an integer number (2076867).

Almost surely, 2^25145125 is an apocalyptic number.

25145125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25145125 is a deficient number, since it is larger than the sum of its proper divisors (8084747).

25145125 is a wasteful number, since it uses less digits than its factorization.

25145125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11865 (or 11855 counting only the distinct ones).

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

The square root of 25145125 is about 5014.4914996438. The cubic root of 25145125 is about 292.9664799528.

Adding to 25145125 its reverse (52154152), we get a palindrome (77299277).

The spelling of 25145125 in words is "twenty-five million, one hundred forty-five thousand, one hundred twenty-five".