82543850 has 12 divisors (see below), whose sum is σ = 153531654. Its totient is φ = 33017520.

The previous prime is 82543841. The next prime is 82543883. The reversal of 82543850 is 5834528.

It can be written as a sum of positive squares in 3 ways, for example, as 55368481 + 27175369 = 7441^2 + 5213^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82543850.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 825389 + ... + 825488.

Almost surely, 2^82543850 is an apocalyptic number.

82543850 is a deficient number, since it is larger than the sum of its proper divisors (70987804).

82543850 is a wasteful number, since it uses less digits than its factorization.

82543850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650889 (or 1650884 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 82543850 is about 9085.3646046815. The cubic root of 82543850 is about 435.4064989524.

The spelling of 82543850 in words is "eighty-two million, five hundred forty-three thousand, eight hundred fifty".