25796987 has 2 divisors, whose sum is σ = 25796988. Its totient is φ = 25796986.

The previous prime is 25796977. The next prime is 25796993. The reversal of 25796987 is 78969752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25796987 - 2⁶ = 25796923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25796977) 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, 12898493 + 12898494.

It is an arithmetic number, because the mean of its divisors is an integer number (12898494).

Almost surely, 2^25796987 is an apocalyptic number.

25796987 is a deficient number, since it is larger than the sum of its proper divisors (1).

25796987 is an equidigital number, since it uses as much as digits as its factorization.

25796987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 53.

The square root of 25796987 is about 5079.0734391225. The cubic root of 25796987 is about 295.4765332663.

The spelling of 25796987 in words is "twenty-five million, seven hundred ninety-six thousand, nine hundred eighty-seven".