82520067 has 24 divisors (see below), whose sum is σ = 133560576. Its totient is φ = 45102288.

The previous prime is 82520041. The next prime is 82520071. The reversal of 82520067 is 76002528.

It is not a de Polignac number, because 82520067 - 2⁷ = 82519939 is a prime.

It is a super-2 number, since 2×82520067² = 13619122915368978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82520017) 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 23 ways as a sum of consecutive naturals, for example, 8823 + ... + 15584.

It is an arithmetic number, because the mean of its divisors is an integer number (5565024).

Almost surely, 2^82520067 is an apocalyptic number.

82520067 is a deficient number, since it is larger than the sum of its proper divisors (51040509).

82520067 is a wasteful number, since it uses less digits than its factorization.

82520067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24447 (or 24440 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 82520067 is about 9084.0556471215. The cubic root of 82520067 is about 435.3646776761.

The spelling of 82520067 in words is "eighty-two million, five hundred twenty thousand, sixty-seven".