82056520 has 64 divisors (see below), whose sum is σ = 227243520. Its totient is φ = 25968384.

The previous prime is 82056511. The next prime is 82056523. The reversal of 82056520 is 2565028.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (82056523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7632 + ... + 14911.

It is an arithmetic number, because the mean of its divisors is an integer number (3550680).

Almost surely, 2^82056520 is an apocalyptic number.

It is an amenable number.

82056520 is an abundant number, since it is smaller than the sum of its proper divisors (145187000).

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

82056520 is a wasteful number, since it uses less digits than its factorization.

82056520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22574 (or 22570 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 82056520 is about 9058.5053954833. The cubic root of 82056520 is about 434.5479427633.

The spelling of 82056520 in words is "eighty-two million, fifty-six thousand, five hundred twenty".