80555218 has 8 divisors (see below), whose sum is σ = 120875760. Its totient is φ = 40263300.

The previous prime is 80555173. The next prime is 80555219. The reversal of 80555218 is 81255508.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (80555219) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2473 + ... + 12931.

It is an arithmetic number, because the mean of its divisors is an integer number (15109470).

Almost surely, 2^80555218 is an apocalyptic number.

80555218 is a deficient number, since it is larger than the sum of its proper divisors (40320542).

80555218 is a wasteful number, since it uses less digits than its factorization.

80555218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14312.

The product of its (nonzero) digits is 16000, while the sum is 34.

The square root of 80555218 is about 8975.2558737899. The cubic root of 80555218 is about 431.8814582442.

The spelling of 80555218 in words is "eighty million, five hundred fifty-five thousand, two hundred eighteen".