25392725 has 6 divisors (see below), whose sum is σ = 31487010. Its totient is φ = 20314160.

The previous prime is 25392707. The next prime is 25392727. The reversal of 25392725 is 52729352.

It can be written as a sum of positive squares in 3 ways, for example, as 2486929 + 22905796 = 1577^2 + 4786^2 .

It is not a de Polignac number, because 25392725 - 2⁸ = 25392469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25392727) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 507830 + ... + 507879.

It is an arithmetic number, because the mean of its divisors is an integer number (5247835).

Almost surely, 2^25392725 is an apocalyptic number.

25392725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25392725 is a deficient number, since it is larger than the sum of its proper divisors (6094285).

25392725 is a wasteful number, since it uses less digits than its factorization.

25392725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015719 (or 1015714 counting only the distinct ones).

The product of its digits is 37800, while the sum is 35.

The square root of 25392725 is about 5039.1194667323. The cubic root of 25392725 is about 293.9249388028.

The spelling of 25392725 in words is "twenty-five million, three hundred ninety-two thousand, seven hundred twenty-five".