25681063 has 2 divisors, whose sum is σ = 25681064. Its totient is φ = 25681062.

The previous prime is 25681057. The next prime is 25681079. The reversal of 25681063 is 36018652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25681063 - 2⁵ = 25681031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25681003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12840531 + 12840532.

It is an arithmetic number, because the mean of its divisors is an integer number (12840532).

Almost surely, 2^25681063 is an apocalyptic number.

25681063 is a deficient number, since it is larger than the sum of its proper divisors (1).

25681063 is an equidigital number, since it uses as much as digits as its factorization.

25681063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 25681063 is about 5067.6486658015. The cubic root of 25681063 is about 295.0332740405.

The spelling of 25681063 in words is "twenty-five million, six hundred eighty-one thousand, sixty-three".