26055553 has 2 divisors, whose sum is σ = 26055554. Its totient is φ = 26055552.

The previous prime is 26055529. The next prime is 26055559. The reversal of 26055553 is 35555062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23155344 + 2900209 = 4812^2 + 1703^2 .

It is a cyclic number.

It is not a de Polignac number, because 26055553 - 2²¹ = 23958401 is a prime.

It is a nialpdrome in base 12.

It is not a weakly prime, because it can be changed into another prime (26055559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13027776 + 13027777.

It is an arithmetic number, because the mean of its divisors is an integer number (13027777).

Almost surely, 2^26055553 is an apocalyptic number.

It is an amenable number.

26055553 is a deficient number, since it is larger than the sum of its proper divisors (1).

26055553 is an equidigital number, since it uses as much as digits as its factorization.

26055553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 26055553 is about 5104.4640267123. The cubic root of 26055553 is about 296.4604510322.

The spelling of 26055553 in words is "twenty-six million, fifty-five thousand, five hundred fifty-three".