82155006 has 32 divisors (see below), whose sum is σ = 183052800. Its totient is φ = 27312120.

The previous prime is 82155001. The next prime is 82155019. The reversal of 82155006 is 60055128.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82155001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20811 + ... + 24441.

It is an arithmetic number, because the mean of its divisors is an integer number (5720400).

Almost surely, 2^82155006 is an apocalyptic number.

82155006 is an abundant number, since it is smaller than the sum of its proper divisors (100897794).

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

82155006 is a wasteful number, since it uses less digits than its factorization.

82155006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4061 (or 4055 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 82155006 is about 9063.9398718217. The cubic root of 82155006 is about 434.7217245183.

The spelling of 82155006 in words is "eighty-two million, one hundred fifty-five thousand, six".