26239853 has 2 divisors, whose sum is σ = 26239854. Its totient is φ = 26239852.

The previous prime is 26239841. The next prime is 26239859. The reversal of 26239853 is 35893262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26081449 + 158404 = 5107^2 + 398^2 .

It is a cyclic number.

It is not a de Polignac number, because 26239853 - 2¹² = 26235757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26239859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13119926 + 13119927.

It is an arithmetic number, because the mean of its divisors is an integer number (13119927).

Almost surely, 2^26239853 is an apocalyptic number.

It is an amenable number.

26239853 is a deficient number, since it is larger than the sum of its proper divisors (1).

26239853 is an equidigital number, since it uses as much as digits as its factorization.

26239853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The square root of 26239853 is about 5122.4850414618. The cubic root of 26239853 is about 297.1577987498.

The spelling of 26239853 in words is "twenty-six million, two hundred thirty-nine thousand, eight hundred fifty-three".