26538419 has 2 divisors, whose sum is σ = 26538420. Its totient is φ = 26538418.

The previous prime is 26538397. The next prime is 26538431. The reversal of 26538419 is 91483562.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26538419 is a prime.

It is a super-2 number, since 2×26538419² = 1408575366039122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26538469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13269209 + 13269210.

It is an arithmetic number, because the mean of its divisors is an integer number (13269210).

Almost surely, 2^26538419 is an apocalyptic number.

26538419 is a deficient number, since it is larger than the sum of its proper divisors (1).

26538419 is an equidigital number, since it uses as much as digits as its factorization.

26538419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 26538419 is about 5151.5453021399. The cubic root of 26538419 is about 298.2806051717.

The spelling of 26538419 in words is "twenty-six million, five hundred thirty-eight thousand, four hundred nineteen".