82864550 has 48 divisors (see below), whose sum is σ = 160501632. Its totient is φ = 31795200.

The previous prime is 82864543. The next prime is 82864577. The reversal of 82864550 is 5546828.

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, 299012 + ... + 299288.

It is an arithmetic number, because the mean of its divisors is an integer number (3343784).

Almost surely, 2^82864550 is an apocalyptic number.

82864550 is a deficient number, since it is larger than the sum of its proper divisors (77637082).

82864550 is a wasteful number, since it uses less digits than its factorization.

82864550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 82864550 is about 9102.9967593095. The cubic root of 82864550 is about 435.9696518169.

The spelling of 82864550 in words is "eighty-two million, eight hundred sixty-four thousand, five hundred fifty".