82776055 has 8 divisors (see below), whose sum is σ = 99927072. Its totient is φ = 65823648.

The previous prime is 82776049. The next prime is 82776059. The reversal of 82776055 is 55067728.

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

It is a cyclic number.

It is not a de Polignac number, because 82776055 - 2³ = 82776047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82775999 and 82776017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82776059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48732 + ... + 50401.

It is an arithmetic number, because the mean of its divisors is an integer number (12490884).

Almost surely, 2^82776055 is an apocalyptic number.

82776055 is a deficient number, since it is larger than the sum of its proper divisors (17151017).

82776055 is a wasteful number, since it uses less digits than its factorization.

82776055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99305.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 82776055 is about 9098.1346989369. The cubic root of 82776055 is about 435.8143989506.

The spelling of 82776055 in words is "eighty-two million, seven hundred seventy-six thousand, fifty-five".