82993550 has 24 divisors (see below), whose sum is σ = 156904392. Its totient is φ = 32652000.

The previous prime is 82993549. The next prime is 82993571. The reversal of 82993550 is 5539928.

It is a junction number, because it is equal to n+sod(n) for n = 82993498 and 82993507.

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 11 ways as a sum of consecutive naturals, for example, 10556 + ... + 16655.

It is an arithmetic number, because the mean of its divisors is an integer number (6537683).

Almost surely, 2^82993550 is an apocalyptic number.

82993550 is a deficient number, since it is larger than the sum of its proper divisors (73910842).

82993550 is a wasteful number, since it uses less digits than its factorization.

82993550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27284 (or 27279 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 82993550 is about 9110.0795825284. The cubic root of 82993550 is about 436.1957675131.

The spelling of 82993550 in words is "eighty-two million, nine hundred ninety-three thousand, five hundred fifty".