26159801 has 2 divisors, whose sum is σ = 26159802. Its totient is φ = 26159800.

The previous prime is 26159797. The next prime is 26159803. The reversal of 26159801 is 10895162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25999801 + 160000 = 5099^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 26159801 - 2² = 26159797 is a prime.

Together with 26159803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26159803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13079900 + 13079901.

It is an arithmetic number, because the mean of its divisors is an integer number (13079901).

Almost surely, 2^26159801 is an apocalyptic number.

It is an amenable number.

26159801 is a deficient number, since it is larger than the sum of its proper divisors (1).

26159801 is an equidigital number, since it uses as much as digits as its factorization.

26159801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 26159801 is about 5114.6652871913. The cubic root of 26159801 is about 296.8553033063.

The spelling of 26159801 in words is "twenty-six million, one hundred fifty-nine thousand, eight hundred one".