26218601 has 2 divisors, whose sum is σ = 26218602. Its totient is φ = 26218600.

The previous prime is 26218589. The next prime is 26218627. The reversal of 26218601 is 10681262.

It is an a-pointer prime, because the next prime (26218627) can be obtained adding 26218601 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17007376 + 9211225 = 4124^2 + 3035^2 .

It is a cyclic number.

It is not a de Polignac number, because 26218601 - 2¹⁰ = 26217577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26218501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13109300 + 13109301.

It is an arithmetic number, because the mean of its divisors is an integer number (13109301).

Almost surely, 2^26218601 is an apocalyptic number.

It is an amenable number.

26218601 is a deficient number, since it is larger than the sum of its proper divisors (1).

26218601 is an equidigital number, since it uses as much as digits as its factorization.

26218601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 26218601 is about 5120.4102374712. The cubic root of 26218601 is about 297.0775530865.

Adding to 26218601 its reverse (10681262), we get a palindrome (36899863).

The spelling of 26218601 in words is "twenty-six million, two hundred eighteen thousand, six hundred one".