26425169 has 2 divisors, whose sum is σ = 26425170. Its totient is φ = 26425168.

The previous prime is 26425127. The next prime is 26425171. The reversal of 26425169 is 96152462.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25877569 + 547600 = 5087^2 + 740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26425169 is a prime.

It is a super-2 number, since 2×26425169² = 1396579113357122, which contains 22 as substring.

Together with 26425171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26425199) 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, 13212584 + 13212585.

It is an arithmetic number, because the mean of its divisors is an integer number (13212585).

Almost surely, 2^26425169 is an apocalyptic number.

It is an amenable number.

26425169 is a deficient number, since it is larger than the sum of its proper divisors (1).

26425169 is an equidigital number, since it uses as much as digits as its factorization.

26425169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The square root of 26425169 is about 5140.5417029726. The cubic root of 26425169 is about 297.8557061592.

The spelling of 26425169 in words is "twenty-six million, four hundred twenty-five thousand, one hundred sixty-nine".