25875257 has 2 divisors, whose sum is σ = 25875258. Its totient is φ = 25875256.

The previous prime is 25875233. The next prime is 25875281. The reversal of 25875257 is 75257852.

It is a balanced prime because it is at equal distance from previous prime (25875233) and next prime (25875281).

It can be written as a sum of positive squares in only one way, i.e., 18498601 + 7376656 = 4301^2 + 2716^2 .

It is a cyclic number.

It is not a de Polignac number, because 25875257 - 2⁶ = 25875193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25871257) 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 as a sum of consecutive naturals, namely, 12937628 + 12937629.

It is an arithmetic number, because the mean of its divisors is an integer number (12937629).

Almost surely, 2^25875257 is an apocalyptic number.

It is an amenable number.

25875257 is a deficient number, since it is larger than the sum of its proper divisors (1).

25875257 is an equidigital number, since it uses as much as digits as its factorization.

25875257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 196000, while the sum is 41.

The square root of 25875257 is about 5086.7727490030. The cubic root of 25875257 is about 295.7750642274.

The spelling of 25875257 in words is "twenty-five million, eight hundred seventy-five thousand, two hundred fifty-seven".