26155069 has 2 divisors, whose sum is σ = 26155070. Its totient is φ = 26155068.

The previous prime is 26155037. The next prime is 26155111. The reversal of 26155069 is 96055162.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21511044 + 4644025 = 4638^2 + 2155^2 .

It is a cyclic number.

It is not a de Polignac number, because 26155069 - 2⁵ = 26155037 is a prime.

It is a super-2 number, since 2×26155069² = 1368175268789522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26155009) 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, 13077534 + 13077535.

It is an arithmetic number, because the mean of its divisors is an integer number (13077535).

Almost surely, 2^26155069 is an apocalyptic number.

It is an amenable number.

26155069 is a deficient number, since it is larger than the sum of its proper divisors (1).

26155069 is an equidigital number, since it uses as much as digits as its factorization.

26155069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 26155069 is about 5114.2026749045. The cubic root of 26155069 is about 296.8374030172.

The spelling of 26155069 in words is "twenty-six million, one hundred fifty-five thousand, sixty-nine".