26534489 has 2 divisors, whose sum is σ = 26534490. Its totient is φ = 26534488.

The previous prime is 26534471. The next prime is 26534509. The reversal of 26534489 is 98443562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24552025 + 1982464 = 4955^2 + 1408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26534489 is a prime.

It is a super-2 number, since 2×26534489² = 1408158212982242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (26534689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13267244 + 13267245.

It is an arithmetic number, because the mean of its divisors is an integer number (13267245).

Almost surely, 2^26534489 is an apocalyptic number.

It is an amenable number.

26534489 is a deficient number, since it is larger than the sum of its proper divisors (1).

26534489 is an equidigital number, since it uses as much as digits as its factorization.

26534489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 41.

The square root of 26534489 is about 5151.1638490733. The cubic root of 26534489 is about 298.2658805989.

The spelling of 26534489 in words is "twenty-six million, five hundred thirty-four thousand, four hundred eighty-nine".