81068055 has 8 divisors (see below), whose sum is σ = 129708912. Its totient is φ = 43236288.

The previous prime is 81068027. The next prime is 81068063. The reversal of 81068055 is 55086018.

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

It is not a de Polignac number, because 81068055 - 2¹³ = 81059863 is a prime.

It is a congruent 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, 2702254 + ... + 2702283.

It is an arithmetic number, because the mean of its divisors is an integer number (16213614).

Almost surely, 2^81068055 is an apocalyptic number.

81068055 is a deficient number, since it is larger than the sum of its proper divisors (48640857).

81068055 is a wasteful number, since it uses less digits than its factorization.

81068055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404545.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 81068055 is about 9003.7800395167. The cubic root of 81068055 is about 432.7960128436.

It can be divided in two parts, 8106 and 8055, that added together give a palindrome (16161).

The spelling of 81068055 in words is "eighty-one million, sixty-eight thousand, fifty-five".