82554840 has 96 divisors (see below), whose sum is σ = 274594320. Its totient is φ = 21498624.

The previous prime is 82554827. The next prime is 82554847. The reversal of 82554840 is 4845528.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 82554795 and 82554804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82554847) 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 23 ways as a sum of consecutive naturals, for example, 12814 + ... + 18146.

Almost surely, 2^82554840 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 82554840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137297160).

82554840 is an abundant number, since it is smaller than the sum of its proper divisors (192039480).

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

82554840 is a wasteful number, since it uses less digits than its factorization.

82554840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5393 (or 5386 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 82554840 is about 9085.9694034264. The cubic root of 82554840 is about 435.4258216319.

The spelling of 82554840 in words is "eighty-two million, five hundred fifty-four thousand, eight hundred forty".