82528280 has 32 divisors (see below), whose sum is σ = 185952240. Its totient is φ = 32964480.

The previous prime is 82528253. The next prime is 82528291. The reversal of 82528280 is 8282528.

It is a self number, because there is not a number n which added to its sum of digits gives 82528280.

It is a congruent number.

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, 46367 + ... + 48113.

Almost surely, 2^82528280 is an apocalyptic number.

It is an amenable number.

82528280 is an abundant number, since it is smaller than the sum of its proper divisors (103423960).

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

82528280 is a wasteful number, since it uses less digits than its factorization.

82528280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939 (or 2935 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 82528280 is about 9084.5076916694. The cubic root of 82528280 is about 435.3791207549.

The spelling of 82528280 in words is "eighty-two million, five hundred twenty-eight thousand, two hundred eighty".