82506555 has 48 divisors (see below), whose sum is σ = 147891744. Its totient is φ = 42524160.

The previous prime is 82506539. The next prime is 82506577. The reversal of 82506555 is 55560528.

It is not a de Polignac number, because 82506555 - 2⁴ = 82506539 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 363352 + ... + 363578.

It is an arithmetic number, because the mean of its divisors is an integer number (3081078).

Almost surely, 2^82506555 is an apocalyptic number.

82506555 is a deficient number, since it is larger than the sum of its proper divisors (65385189).

82506555 is a wasteful number, since it uses less digits than its factorization.

82506555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 473 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The square root of 82506555 is about 9083.3118959992. The cubic root of 82506555 is about 435.3409138861.

The spelling of 82506555 in words is "eighty-two million, five hundred six thousand, five hundred fifty-five".