26065631 has 2 divisors, whose sum is σ = 26065632. Its totient is φ = 26065630.

The previous prime is 26065621. The next prime is 26065639. The reversal of 26065631 is 13656062.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26065631 is a prime.

It is a super-2 number, since 2×26065631² = 1358834238856322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 26065594 and 26065603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26065639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13032815 + 13032816.

It is an arithmetic number, because the mean of its divisors is an integer number (13032816).

Almost surely, 2^26065631 is an apocalyptic number.

26065631 is a deficient number, since it is larger than the sum of its proper divisors (1).

26065631 is an equidigital number, since it uses as much as digits as its factorization.

26065631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 26065631 is about 5105.4511064156. The cubic root of 26065631 is about 296.4986686475.

The spelling of 26065631 in words is "twenty-six million, sixty-five thousand, six hundred thirty-one".