25857283 has 2 divisors, whose sum is σ = 25857284. Its totient is φ = 25857282.

The previous prime is 25857263. The next prime is 25857287. The reversal of 25857283 is 38275852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25857283 - 2⁹ = 25856771 is a prime.

It is not a weakly prime, because it can be changed into another prime (25857287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12928641 + 12928642.

It is an arithmetic number, because the mean of its divisors is an integer number (12928642).

Almost surely, 2^25857283 is an apocalyptic number.

25857283 is a deficient number, since it is larger than the sum of its proper divisors (1).

25857283 is an equidigital number, since it uses as much as digits as its factorization.

25857283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134400, while the sum is 40.

The square root of 25857283 is about 5085.0057030450. The cubic root of 25857283 is about 295.7065625897.

The spelling of 25857283 in words is "twenty-five million, eight hundred fifty-seven thousand, two hundred eighty-three".