26530219 has 2 divisors, whose sum is σ = 26530220. Its totient is φ = 26530218.

The previous prime is 26530211. The next prime is 26530223. The reversal of 26530219 is 91203562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26530219 - 2³ = 26530211 is a prime.

It is a super-2 number, since 2×26530219² = 1407705040375922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26530211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13265109 + 13265110.

It is an arithmetic number, because the mean of its divisors is an integer number (13265110).

Almost surely, 2^26530219 is an apocalyptic number.

26530219 is a deficient number, since it is larger than the sum of its proper divisors (1).

26530219 is an equidigital number, since it uses as much as digits as its factorization.

26530219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 26530219 is about 5150.7493629568. The cubic root of 26530219 is about 298.2498804964.

The spelling of 26530219 in words is "twenty-six million, five hundred thirty thousand, two hundred nineteen".