26504161 has 2 divisors, whose sum is σ = 26504162. Its totient is φ = 26504160.

The previous prime is 26504147. The next prime is 26504167. The reversal of 26504161 is 16140562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17766225 + 8737936 = 4215^2 + 2956^2 .

It is a cyclic number.

It is not a de Polignac number, because 26504161 - 2⁵ = 26504129 is a prime.

It is not a weakly prime, because it can be changed into another prime (26504167) 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, 13252080 + 13252081.

It is an arithmetic number, because the mean of its divisors is an integer number (13252081).

Almost surely, 2^26504161 is an apocalyptic number.

It is an amenable number.

26504161 is a deficient number, since it is larger than the sum of its proper divisors (1).

26504161 is an equidigital number, since it uses as much as digits as its factorization.

26504161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 26504161 is about 5148.2192066772. The cubic root of 26504161 is about 298.1522014276.

The spelling of 26504161 in words is "twenty-six million, five hundred four thousand, one hundred sixty-one".