26312543 has 2 divisors, whose sum is σ = 26312544. Its totient is φ = 26312542.

The previous prime is 26312537. The next prime is 26312557. The reversal of 26312543 is 34521362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26312543 - 2⁸ = 26312287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26312443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13156271 + 13156272.

It is an arithmetic number, because the mean of its divisors is an integer number (13156272).

Almost surely, 2^26312543 is an apocalyptic number.

26312543 is a deficient number, since it is larger than the sum of its proper divisors (1).

26312543 is an equidigital number, since it uses as much as digits as its factorization.

26312543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 26.

The square root of 26312543 is about 5129.5753235526. The cubic root of 26312543 is about 297.4319426271.

The spelling of 26312543 in words is "twenty-six million, three hundred twelve thousand, five hundred forty-three".