26330561 has 16 divisors (see below), whose sum is σ = 29289600. Its totient is φ = 23557248.

The previous prime is 26330537. The next prime is 26330567. The reversal of 26330561 is 16503362.

It is a cyclic number.

It is not a de Polignac number, because 26330561 - 2⁶ = 26330497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26330561.

It is not an unprimeable number, because it can be changed into a prime (26330567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38555 + ... + 39231.

It is an arithmetic number, because the mean of its divisors is an integer number (1830600).

Almost surely, 2^26330561 is an apocalyptic number.

It is an amenable number.

26330561 is a deficient number, since it is larger than the sum of its proper divisors (2959039).

26330561 is a wasteful number, since it uses less digits than its factorization.

26330561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 26330561 is about 5131.3313087346. The cubic root of 26330561 is about 297.4998178094.

The spelling of 26330561 in words is "twenty-six million, three hundred thirty thousand, five hundred sixty-one".