26530566 has 16 divisors (see below), whose sum is σ = 53295600. Its totient is φ = 8804448.

The previous prime is 26530529. The next prime is 26530571. The reversal of 26530566 is 66503562.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8281 + ... + 11028.

It is an arithmetic number, because the mean of its divisors is an integer number (3330975).

Almost surely, 2^26530566 is an apocalyptic number.

26530566 is an abundant number, since it is smaller than the sum of its proper divisors (26765034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26530566 is a wasteful number, since it uses less digits than its factorization.

26530566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19543.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 26530566 is about 5150.7830472657. The cubic root of 26530566 is about 298.2511808030.

The spelling of 26530566 in words is "twenty-six million, five hundred thirty thousand, five hundred sixty-six".