82545204 has 72 divisors (see below), whose sum is σ = 227015040. Its totient is φ = 23272704.

The previous prime is 82545193. The next prime is 82545227. The reversal of 82545204 is 40254528.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45564 + ... + 47340.

Almost surely, 2^82545204 is an apocalyptic number.

82545204 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82545204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113507520).

82545204 is an abundant number, since it is smaller than the sum of its proper divisors (144469836).

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

82545204 is a wasteful number, since it uses less digits than its factorization.

82545204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877 (or 1868 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 82545204 is about 9085.4391198224. The cubic root of 82545204 is about 435.4088796554.

The spelling of 82545204 in words is "eighty-two million, five hundred forty-five thousand, two hundred four".