26041591 has 2 divisors, whose sum is σ = 26041592. Its totient is φ = 26041590.

The previous prime is 26041579. The next prime is 26041607. The reversal of 26041591 is 19514062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26041591 - 2⁵ = 26041559 is a prime.

It is a super-2 number, since 2×26041591² = 1356328923622562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26041541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13020795 + 13020796.

It is an arithmetic number, because the mean of its divisors is an integer number (13020796).

Almost surely, 2^26041591 is an apocalyptic number.

26041591 is a deficient number, since it is larger than the sum of its proper divisors (1).

26041591 is an equidigital number, since it uses as much as digits as its factorization.

26041591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 26041591 is about 5103.0962170039. The cubic root of 26041591 is about 296.4074882931.

The spelling of 26041591 in words is "twenty-six million, forty-one thousand, five hundred ninety-one".