82558 has 8 divisors (see below), whose sum is σ = 141552. Its totient is φ = 35376.

The previous prime is 82549. The next prime is 82559. The reversal of 82558 is 85528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82559) by changing a digit.

82558 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2935 + ... + 2962.

It is an arithmetic number, because the mean of its divisors is an integer number (17694).

2⁸²⁵⁵⁸ is an apocalyptic number.

82558 is a deficient number, since it is larger than the sum of its proper divisors (58994).

82558 is a wasteful number, since it uses less digits than its factorization.

82558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906.

The product of its digits is 3200, while the sum is 28.

The square root of 82558 is about 287.3290796282. The cubic root of 82558 is about 43.5431377244.

Adding to 82558 its product of digits (3200), we get a palindrome (85758).

The spelling of 82558 in words is "eighty-two thousand, five hundred fifty-eight".