25025015 has 16 divisors (see below), whose sum is σ = 30715200. Its totient is φ = 19568640.

The previous prime is 25024981. The next prime is 25025041. The reversal of 25025015 is 51052052.

It is not a de Polignac number, because 25025015 - 2¹⁰ = 25023991 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 55511 + ... + 55959.

It is an arithmetic number, because the mean of its divisors is an integer number (1919700).

Almost surely, 2^25025015 is an apocalyptic number.

25025015 is a deficient number, since it is larger than the sum of its proper divisors (5690185).

25025015 is a wasteful number, since it uses less digits than its factorization.

25025015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 25025015 is about 5002.5008745626. The cubic root of 25025015 is about 292.4992670496.

Adding to 25025015 its reverse (51052052), we get a palindrome (76077067).

The spelling of 25025015 in words is "twenty-five million, twenty-five thousand, fifteen".