26015641 has 2 divisors, whose sum is σ = 26015642. Its totient is φ = 26015640.

The previous prime is 26015629. The next prime is 26015687. The reversal of 26015641 is 14651062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13660416 + 12355225 = 3696^2 + 3515^2 .

It is a cyclic number.

It is not a de Polignac number, because 26015641 - 2⁵ = 26015609 is a prime.

It is not a weakly prime, because it can be changed into another prime (26015611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13007820 + 13007821.

It is an arithmetic number, because the mean of its divisors is an integer number (13007821).

Almost surely, 2^26015641 is an apocalyptic number.

It is an amenable number.

26015641 is a deficient number, since it is larger than the sum of its proper divisors (1).

26015641 is an equidigital number, since it uses as much as digits as its factorization.

26015641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 26015641 is about 5100.5530092334. The cubic root of 26015641 is about 296.3090005747.

The spelling of 26015641 in words is "twenty-six million, fifteen thousand, six hundred forty-one".