26526491 has 2 divisors, whose sum is σ = 26526492. Its totient is φ = 26526490.

The previous prime is 26526481. The next prime is 26526497. The reversal of 26526491 is 19462562.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26526491 - 2⁶ = 26526427 is a prime.

It is not a weakly prime, because it can be changed into another prime (26526497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13263245 + 13263246.

It is an arithmetic number, because the mean of its divisors is an integer number (13263246).

Almost surely, 2^26526491 is an apocalyptic number.

26526491 is a deficient number, since it is larger than the sum of its proper divisors (1).

26526491 is an equidigital number, since it uses as much as digits as its factorization.

26526491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 26526491 is about 5150.3874611528. The cubic root of 26526491 is about 298.2359099164.

The spelling of 26526491 in words is "twenty-six million, five hundred twenty-six thousand, four hundred ninety-one".