25087 has 2 divisors, whose sum is σ = 25088. Its totient is φ = 25086.

The previous prime is 25073. The next prime is 25097. The reversal of 25087 is 78052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25087 - 2¹¹ = 23039 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25037) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12543 + 12544.

It is an arithmetic number, because the mean of its divisors is an integer number (12544).

2²⁵⁰⁸⁷ is an apocalyptic number.

25087 is a deficient number, since it is larger than the sum of its proper divisors (1).

25087 is an equidigital number, since it uses as much as digits as its factorization.

25087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 25087 is about 158.3887622276. The cubic root of 25087 is about 29.2740567182.

The spelling of 25087 in words is "twenty-five thousand, eighty-seven".