26320331 has 2 divisors, whose sum is σ = 26320332. Its totient is φ = 26320330.

The previous prime is 26320289. The next prime is 26320361. The reversal of 26320331 is 13302362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26320331 - 2¹⁸ = 26058187 is a prime.

It is a super-2 number, since 2×26320331² = 1385519647899122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26320361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13160165 + 13160166.

It is an arithmetic number, because the mean of its divisors is an integer number (13160166).

Almost surely, 2^26320331 is an apocalyptic number.

26320331 is a deficient number, since it is larger than the sum of its proper divisors (1).

26320331 is an equidigital number, since it uses as much as digits as its factorization.

26320331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 26320331 is about 5130.3343945595. The cubic root of 26320331 is about 297.4612844189.

Adding to 26320331 its reverse (13302362), we get a palindrome (39622693).

The spelling of 26320331 in words is "twenty-six million, three hundred twenty thousand, three hundred thirty-one".