82485920 has 48 divisors (see below), whose sum is σ = 212593248. Its totient is φ = 29994240.

The previous prime is 82485899. The next prime is 82485937. The reversal of 82485920 is 2958428.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21674 + ... + 25193.

It is an arithmetic number, because the mean of its divisors is an integer number (4429026).

Almost surely, 2^82485920 is an apocalyptic number.

82485920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

82485920 is an abundant number, since it is smaller than the sum of its proper divisors (130107328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82485920 is a wasteful number, since it uses less digits than its factorization.

82485920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46893 (or 46885 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 82485920 is about 9082.1759507290. The cubic root of 82485920 is about 435.3046177447.

The spelling of 82485920 in words is "eighty-two million, four hundred eighty-five thousand, nine hundred twenty".