26561355 has 8 divisors (see below), whose sum is σ = 42498192. Its totient is φ = 14166048.

The previous prime is 26561341. The next prime is 26561363. The reversal of 26561355 is 55316562.

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

It is not a de Polignac number, because 26561355 - 2⁵ = 26561323 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885364 + ... + 885393.

It is an arithmetic number, because the mean of its divisors is an integer number (5312274).

Almost surely, 2^26561355 is an apocalyptic number.

26561355 is a deficient number, since it is larger than the sum of its proper divisors (15936837).

26561355 is a wasteful number, since it uses less digits than its factorization.

26561355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770765.

The product of its digits is 27000, while the sum is 33.

The square root of 26561355 is about 5153.7709495087. The cubic root of 26561355 is about 298.3665107414.

The spelling of 26561355 in words is "twenty-six million, five hundred sixty-one thousand, three hundred fifty-five".