26555166 has 48 divisors (see below), whose sum is σ = 64247040. Its totient is φ = 7857360.

The previous prime is 26555161. The next prime is 26555183. The reversal of 26555166 is 66155562.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26555166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26555161) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 6955 + ... + 10073.

It is an arithmetic number, because the mean of its divisors is an integer number (1338480).

Almost surely, 2^26555166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26555166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32123520).

26555166 is an abundant number, since it is smaller than the sum of its proper divisors (37691874).

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

26555166 is a wasteful number, since it uses less digits than its factorization.

26555166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3181 (or 3178 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 26555166 is about 5153.1704803936. The cubic root of 26555166 is about 298.3433350440.

The spelling of 26555166 in words is "twenty-six million, five hundred fifty-five thousand, one hundred sixty-six".