82748550 has 48 divisors (see below), whose sum is σ = 207843840. Its totient is φ = 21783840.

The previous prime is 82748527. The next prime is 82748563. The reversal of 82748550 is 5584728.

It is a junction number, because it is equal to n+sod(n) for n = 82748499 and 82748508.

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, 8359 + ... + 15341.

It is an arithmetic number, because the mean of its divisors is an integer number (4330080).

Almost surely, 2^82748550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82748550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103921920).

82748550 is an abundant number, since it is smaller than the sum of its proper divisors (125095290).

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

82748550 is a wasteful number, since it uses less digits than its factorization.

82748550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077 (or 7072 counting only the distinct ones).

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

The square root of 82748550 is about 9096.6229997730. The cubic root of 82748550 is about 435.7661224976.

The spelling of 82748550 in words is "eighty-two million, seven hundred forty-eight thousand, five hundred fifty".