25825025 has 6 divisors (see below), whose sum is σ = 32023062. Its totient is φ = 20660000.

The previous prime is 25825003. The next prime is 25825027. The reversal of 25825025 is 52052852.

It can be written as a sum of positive squares in 3 ways, for example, as 8464 + 25816561 = 92^2 + 5081^2 .

It is not a de Polignac number, because 25825025 - 2⁸ = 25824769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25825027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 516476 + ... + 516525.

It is an arithmetic number, because the mean of its divisors is an integer number (5337177).

Almost surely, 2^25825025 is an apocalyptic number.

25825025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25825025 is a deficient number, since it is larger than the sum of its proper divisors (6198037).

25825025 is a wasteful number, since it uses less digits than its factorization.

25825025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033011 (or 1033006 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 25825025 is about 5081.8328386518. The cubic root of 25825025 is about 295.5835428101.

Adding to 25825025 its reverse (52052852), we get a palindrome (77877877).

The spelling of 25825025 in words is "twenty-five million, eight hundred twenty-five thousand, twenty-five".