26560489 has 2 divisors, whose sum is σ = 26560490. Its totient is φ = 26560488.

The previous prime is 26560481. The next prime is 26560519. The reversal of 26560489 is 98406562.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25928464 + 632025 = 5092^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 26560489 - 2³ = 26560481 is a prime.

It is not a weakly prime, because it can be changed into another prime (26560481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13280244 + 13280245.

It is an arithmetic number, because the mean of its divisors is an integer number (13280245).

Almost surely, 2^26560489 is an apocalyptic number.

It is an amenable number.

26560489 is a deficient number, since it is larger than the sum of its proper divisors (1).

26560489 is an equidigital number, since it uses as much as digits as its factorization.

26560489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 26560489 is about 5153.6869326726. The cubic root of 26560489 is about 298.3632680829.

The spelling of 26560489 in words is "twenty-six million, five hundred sixty thousand, four hundred eighty-nine".