82855249 has 4 divisors (see below), whose sum is σ = 83675700. Its totient is φ = 82034800.

The previous prime is 82855243. The next prime is 82855261. The reversal of 82855249 is 94255828.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55606849 + 27248400 = 7457^2 + 5220^2 .

It is a cyclic number.

It is not a de Polignac number, because 82855249 - 2⁵ = 82855217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82855243) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 410074 + ... + 410275.

It is an arithmetic number, because the mean of its divisors is an integer number (20918925).

Almost surely, 2^82855249 is an apocalyptic number.

It is an amenable number.

82855249 is a deficient number, since it is larger than the sum of its proper divisors (820451).

82855249 is a wasteful number, since it uses less digits than its factorization.

82855249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820450.

The product of its digits is 230400, while the sum is 43.

The square root of 82855249 is about 9102.4858692557. The cubic root of 82855249 is about 435.9533396325.

The spelling of 82855249 in words is "eighty-two million, eight hundred fifty-five thousand, two hundred forty-nine".