26855401 has 2 divisors, whose sum is σ = 26855402. Its totient is φ = 26855400.

The previous prime is 26855399. The next prime is 26855407. The reversal of 26855401 is 10455862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23775376 + 3080025 = 4876^2 + 1755^2 .

It is a cyclic number.

It is not a de Polignac number, because 26855401 - 2¹ = 26855399 is a prime.

Together with 26855399, 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 (26855407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13427700 + 13427701.

It is an arithmetic number, because the mean of its divisors is an integer number (13427701).

Almost surely, 2^26855401 is an apocalyptic number.

It is an amenable number.

26855401 is a deficient number, since it is larger than the sum of its proper divisors (1).

26855401 is an equidigital number, since it uses as much as digits as its factorization.

26855401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 26855401 is about 5182.2196981602. The cubic root of 26855401 is about 299.4634892408.

The spelling of 26855401 in words is "twenty-six million, eight hundred fifty-five thousand, four hundred one".