26312641 has 2 divisors, whose sum is σ = 26312642. Its totient is φ = 26312640.

The previous prime is 26312639. The next prime is 26312647. The reversal of 26312641 is 14621362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21818241 + 4494400 = 4671^2 + 2120^2 .

It is a cyclic number.

It is not a de Polignac number, because 26312641 - 2¹ = 26312639 is a prime.

Together with 26312639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (26312647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13156320 + 13156321.

It is an arithmetic number, because the mean of its divisors is an integer number (13156321).

Almost surely, 2^26312641 is an apocalyptic number.

It is an amenable number.

26312641 is a deficient number, since it is larger than the sum of its proper divisors (1).

26312641 is an equidigital number, since it uses as much as digits as its factorization.

26312641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 26312641 is about 5129.5848759914. The cubic root of 26312641 is about 297.4323118844.

The spelling of 26312641 in words is "twenty-six million, three hundred twelve thousand, six hundred forty-one".