25758163 has 2 divisors, whose sum is σ = 25758164. Its totient is φ = 25758162.

The previous prime is 25758151. The next prime is 25758169. The reversal of 25758163 is 36185752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25758163 - 2⁹ = 25757651 is a prime.

It is a super-2 number, since 2×25758163² = 1326965922269138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25758169) 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, 12879081 + 12879082.

It is an arithmetic number, because the mean of its divisors is an integer number (12879082).

Almost surely, 2^25758163 is an apocalyptic number.

25758163 is a deficient number, since it is larger than the sum of its proper divisors (1).

25758163 is an equidigital number, since it uses as much as digits as its factorization.

25758163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 37.

The square root of 25758163 is about 5075.2500431013. The cubic root of 25758163 is about 295.3282298929.

It can be divided in two parts, 25758 and 163, that added together give a square (25921 = 161²).

The spelling of 25758163 in words is "twenty-five million, seven hundred fifty-eight thousand, one hundred sixty-three".