82559423 has 4 divisors (see below), whose sum is σ = 83690448. Its totient is φ = 81428400.

The previous prime is 82559377. The next prime is 82559437. The reversal of 82559423 is 32495528.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82559423 - 2⁶ = 82559359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82559023) 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 3 ways as a sum of consecutive naturals, for example, 565403 + ... + 565548.

It is an arithmetic number, because the mean of its divisors is an integer number (20922612).

Almost surely, 2^82559423 is an apocalyptic number.

82559423 is a deficient number, since it is larger than the sum of its proper divisors (1131025).

82559423 is a wasteful number, since it uses less digits than its factorization.

82559423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131024.

The product of its digits is 86400, while the sum is 38.

The square root of 82559423 is about 9086.2216019642. The cubic root of 82559423 is about 435.4338789815.

The spelling of 82559423 in words is "eighty-two million, five hundred fifty-nine thousand, four hundred twenty-three".