26054989 has 2 divisors, whose sum is σ = 26054990. Its totient is φ = 26054988.

The previous prime is 26054971. The next prime is 26055013. The reversal of 26054989 is 98945062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19954089 + 6100900 = 4467^2 + 2470^2 .

It is a cyclic number.

It is not a de Polignac number, because 26054989 - 2¹⁵ = 26022221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26054969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13027494 + 13027495.

It is an arithmetic number, because the mean of its divisors is an integer number (13027495).

Almost surely, 2^26054989 is an apocalyptic number.

It is an amenable number.

26054989 is a deficient number, since it is larger than the sum of its proper divisors (1).

26054989 is an equidigital number, since it uses as much as digits as its factorization.

26054989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 26054989 is about 5104.4087806523. The cubic root of 26054989 is about 296.4583119501.

The spelling of 26054989 in words is "twenty-six million, fifty-four thousand, nine hundred eighty-nine".