26605001 has 2 divisors, whose sum is σ = 26605002. Its totient is φ = 26605000.

The previous prime is 26604979. The next prime is 26605013. The reversal of 26605001 is 10050662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26574025 + 30976 = 5155^2 + 176^2 .

It is a cyclic number.

It is not a de Polignac number, because 26605001 - 2¹⁰ = 26603977 is a prime.

It is not a weakly prime, because it can be changed into another prime (26605801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13302500 + 13302501.

It is an arithmetic number, because the mean of its divisors is an integer number (13302501).

Almost surely, 2^26605001 is an apocalyptic number.

It is an amenable number.

26605001 is a deficient number, since it is larger than the sum of its proper divisors (1).

26605001 is an equidigital number, since it uses as much as digits as its factorization.

26605001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 26605001 is about 5158.0035866602. The cubic root of 26605001 is about 298.5298480198.

Adding to 26605001 its reverse (10050662), we get a palindrome (36655663).

The spelling of 26605001 in words is "twenty-six million, six hundred five thousand, one".