25286117 has 2 divisors, whose sum is σ = 25286118. Its totient is φ = 25286116.

The previous prime is 25286101. The next prime is 25286137. The reversal of 25286117 is 71168252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16008001 + 9278116 = 4001^2 + 3046^2 .

It is a cyclic number.

It is not a de Polignac number, because 25286117 - 2⁴ = 25286101 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 (25286137) 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, 12643058 + 12643059.

It is an arithmetic number, because the mean of its divisors is an integer number (12643059).

Almost surely, 2^25286117 is an apocalyptic number.

It is an amenable number.

25286117 is a deficient number, since it is larger than the sum of its proper divisors (1).

25286117 is an equidigital number, since it uses as much as digits as its factorization.

25286117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 32.

The square root of 25286117 is about 5028.5303021857. The cubic root of 25286117 is about 293.5130268077.

The spelling of 25286117 in words is "twenty-five million, two hundred eighty-six thousand, one hundred seventeen".