82545980 has 24 divisors (see below), whose sum is σ = 189105840. Its totient is φ = 30016640.

The previous prime is 82545979. The next prime is 82545989. The reversal of 82545980 is 8954528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82545989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187385 + ... + 187824.

It is an arithmetic number, because the mean of its divisors is an integer number (7879410).

Almost surely, 2^82545980 is an apocalyptic number.

It is an amenable number.

82545980 is an abundant number, since it is smaller than the sum of its proper divisors (106559860).

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

82545980 is a wasteful number, since it uses less digits than its factorization.

82545980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375229 (or 375227 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 82545980 is about 9085.4818254180. The cubic root of 82545980 is about 435.4102440643.

The spelling of 82545980 in words is "eighty-two million, five hundred forty-five thousand, nine hundred eighty".