25707863 has 2 divisors, whose sum is σ = 25707864. Its totient is φ = 25707862.

The previous prime is 25707823. The next prime is 25707881. The reversal of 25707863 is 36870752.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25707863 - 2¹² = 25703767 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25707823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12853931 + 12853932.

It is an arithmetic number, because the mean of its divisors is an integer number (12853932).

Almost surely, 2^25707863 is an apocalyptic number.

25707863 is a deficient number, since it is larger than the sum of its proper divisors (1).

25707863 is an equidigital number, since it uses as much as digits as its factorization.

25707863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 25707863 is about 5070.2922006527. The cubic root of 25707863 is about 295.1358677022.

The spelling of 25707863 in words is "twenty-five million, seven hundred seven thousand, eight hundred sixty-three".