82530609 has 16 divisors (see below), whose sum is σ = 129161088. Its totient is φ = 45885312.

The previous prime is 82530599. The next prime is 82530641. The reversal of 82530609 is 90603528.

It is a happy number.

It is not a de Polignac number, because 82530609 - 2⁵ = 82530577 is a prime.

It is a super-2 number, since 2×82530609² = 13622602843821762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82530609.

It is not an unprimeable number, because it can be changed into a prime (82530689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52332 + ... + 53885.

It is an arithmetic number, because the mean of its divisors is an integer number (8072568).

Almost surely, 2^82530609 is an apocalyptic number.

It is an amenable number.

82530609 is a deficient number, since it is larger than the sum of its proper divisors (46630479).

82530609 is a wasteful number, since it uses less digits than its factorization.

82530609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106264.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 82530609 is about 9084.6358760272. The cubic root of 82530609 is about 435.3832162740.

The spelling of 82530609 in words is "eighty-two million, five hundred thirty thousand, six hundred nine".