25957025 has 12 divisors (see below), whose sum is σ = 32716284. Its totient is φ = 20424000.

The previous prime is 25956989. The next prime is 25957027. The reversal of 25957025 is 52075952.

It can be written as a sum of positive squares in 6 ways, for example, as 474721 + 25482304 = 689^2 + 5048^2 .

It is not a de Polignac number, because 25957025 - 2¹² = 25952929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25957027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6986 + ... + 10035.

It is an arithmetic number, because the mean of its divisors is an integer number (2726357).

Almost surely, 2^25957025 is an apocalyptic number.

25957025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25957025 is a deficient number, since it is larger than the sum of its proper divisors (6759259).

25957025 is a wasteful number, since it uses less digits than its factorization.

25957025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17092 (or 17087 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 25957025 is about 5094.8037253657. The cubic root of 25957025 is about 296.0862946898.

The spelling of 25957025 in words is "twenty-five million, nine hundred fifty-seven thousand, twenty-five".