26505113 has 2 divisors, whose sum is σ = 26505114. Its totient is φ = 26505112.

The previous prime is 26505109. The next prime is 26505119. The reversal of 26505113 is 31150562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26091664 + 413449 = 5108^2 + 643^2 .

It is a cyclic number.

It is not a de Polignac number, because 26505113 - 2² = 26505109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (26505119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13252556 + 13252557.

It is an arithmetic number, because the mean of its divisors is an integer number (13252557).

Almost surely, 2^26505113 is an apocalyptic number.

It is an amenable number.

26505113 is a deficient number, since it is larger than the sum of its proper divisors (1).

26505113 is an equidigital number, since it uses as much as digits as its factorization.

26505113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 26505113 is about 5148.3116650024. The cubic root of 26505113 is about 298.1557711500.

Adding to 26505113 its reverse (31150562), we get a palindrome (57655675).

The spelling of 26505113 in words is "twenty-six million, five hundred five thousand, one hundred thirteen".