26561705 has 8 divisors (see below), whose sum is σ = 31912704. Its totient is φ = 21223600.

The previous prime is 26561693. The next prime is 26561719. The reversal of 26561705 is 50716562.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26561705 - 2⁶ = 26561641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2120 + ... + 7590.

It is an arithmetic number, because the mean of its divisors is an integer number (3989088).

Almost surely, 2^26561705 is an apocalyptic number.

It is an amenable number.

26561705 is a deficient number, since it is larger than the sum of its proper divisors (5350999).

26561705 is an equidigital number, since it uses as much as digits as its factorization.

26561705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6447.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 26561705 is about 5153.8049051162. The cubic root of 26561705 is about 298.3678212646.

The spelling of 26561705 in words is "twenty-six million, five hundred sixty-one thousand, seven hundred five".