25025025 has 12 divisors (see below), whose sum is σ = 41374832. Its totient is φ = 13346640.

The previous prime is 25024981. The next prime is 25025041. The reversal of 25025025 is 52052052.

It is not a de Polignac number, because 25025025 - 2⁹ = 25024513 is a prime.

It is a Duffinian number.

25025025 is a modest number, since divided by 25025 gives 25 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 25024992 and 25025010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166759 + ... + 166908.

Almost surely, 2^25025025 is an apocalyptic number.

25025025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25025025 is a deficient number, since it is larger than the sum of its proper divisors (16349807).

25025025 is a wasteful number, since it uses less digits than its factorization.

25025025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333680 (or 333675 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 25025025 is about 5002.5018740626. The cubic root of 25025025 is about 292.4993060105.

Multiplying 25025025 by its sum of digits (21), we get a palindrome (525525525).

Adding to 25025025 its reverse (52052052), we get a palindrome (77077077).

The spelling of 25025025 in words is "twenty-five million, twenty-five thousand, twenty-five".