83320556 has 24 divisors (see below), whose sum is σ = 160650000. Its totient is φ = 37496000.

The previous prime is 83320543. The next prime is 83320561. The reversal of 83320556 is 65502338.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4931 + ... + 13818.

It is an arithmetic number, because the mean of its divisors is an integer number (6693750).

Almost surely, 2^83320556 is an apocalyptic number.

It is an amenable number.

83320556 is a deficient number, since it is larger than the sum of its proper divisors (77329444).

83320556 is a wasteful number, since it uses less digits than its factorization.

83320556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18865 (or 18863 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 83320556 is about 9128.0094215552. The cubic root of 83320556 is about 436.7679071695.

The spelling of 83320556 in words is "eighty-three million, three hundred twenty thousand, five hundred fifty-six".