26280031 has 2 divisors, whose sum is σ = 26280032. Its totient is φ = 26280030.

The previous prime is 26280029. The next prime is 26280043. The reversal of 26280031 is 13008262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26280031 - 2¹ = 26280029 is a prime.

It is a super-2 number, since 2×26280031² = 1381280058721922, which contains 22 as substring.

Together with 26280029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 26279984 and 26280011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26280091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13140015 + 13140016.

It is an arithmetic number, because the mean of its divisors is an integer number (13140016).

Almost surely, 2^26280031 is an apocalyptic number.

26280031 is a deficient number, since it is larger than the sum of its proper divisors (1).

26280031 is an equidigital number, since it uses as much as digits as its factorization.

26280031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 26280031 is about 5126.4052707526. The cubic root of 26280031 is about 297.3093889984.

Adding to 26280031 its reverse (13008262), we get a palindrome (39288293).

The spelling of 26280031 in words is "twenty-six million, two hundred eighty thousand, thirty-one".