82554780 has 192 divisors, whose sum is σ = 292626432. Its totient is φ = 16892160.

The previous prime is 82554757. The next prime is 82554781. The reversal of 82554780 is 8745528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82554781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 494257 + ... + 494423.

It is an arithmetic number, because the mean of its divisors is an integer number (1524096).

Almost surely, 2^82554780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82554780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146313216).

82554780 is an abundant number, since it is smaller than the sum of its proper divisors (210071652).

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

82554780 is a wasteful number, since it uses less digits than its factorization.

82554780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 82554780 is about 9085.9661016317. The cubic root of 82554780 is about 435.4257161442.

The spelling of 82554780 in words is "eighty-two million, five hundred fifty-four thousand, seven hundred eighty".