25241857 has 2 divisors, whose sum is σ = 25241858. Its totient is φ = 25241856.

The previous prime is 25241831. The next prime is 25241873. The reversal of 25241857 is 75814252.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24910081 + 331776 = 4991^2 + 576^2 .

It is a cyclic number.

It is not a de Polignac number, because 25241857 - 2¹⁹ = 24717569 is a prime.

It is not a weakly prime, because it can be changed into another prime (25241057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12620928 + 12620929.

It is an arithmetic number, because the mean of its divisors is an integer number (12620929).

Almost surely, 2^25241857 is an apocalyptic number.

It is an amenable number.

25241857 is a deficient number, since it is larger than the sum of its proper divisors (1).

25241857 is an equidigital number, since it uses as much as digits as its factorization.

25241857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 34.

The square root of 25241857 is about 5024.1274864398. The cubic root of 25241857 is about 293.3416748948.

The spelling of 25241857 in words is "twenty-five million, two hundred forty-one thousand, eight hundred fifty-seven".