82508211 has 6 divisors (see below), whose sum is σ = 119178540. Its totient is φ = 55005468.

The previous prime is 82508197. The next prime is 82508221. The reversal of 82508211 is 11280528.

It is not a de Polignac number, because 82508211 - 2⁶ = 82508147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82508221) 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 5 ways as a sum of consecutive naturals, for example, 4583781 + ... + 4583798.

It is an arithmetic number, because the mean of its divisors is an integer number (19863090).

Almost surely, 2^82508211 is an apocalyptic number.

82508211 is a deficient number, since it is larger than the sum of its proper divisors (36670329).

82508211 is a wasteful number, since it uses less digits than its factorization.

82508211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9167585 (or 9167582 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 82508211 is about 9083.4030517202. The cubic root of 82508211 is about 435.3438264617.

Adding to 82508211 its reverse (11280528), we get a palindrome (93788739).

It can be divided in two parts, 8250 and 8211, that added together give a palindrome (16461).

The spelling of 82508211 in words is "eighty-two million, five hundred eight thousand, two hundred eleven".