80221558 has 4 divisors (see below), whose sum is σ = 120332340. Its totient is φ = 40110778.

The previous prime is 80221549. The next prime is 80221571. The reversal of 80221558 is 85512208.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20055388 + ... + 20055391.

It is an arithmetic number, because the mean of its divisors is an integer number (30083085).

Almost surely, 2^80221558 is an apocalyptic number.

80221558 is a deficient number, since it is larger than the sum of its proper divisors (40110782).

80221558 is a wasteful number, since it uses less digits than its factorization.

80221558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40110781.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 80221558 is about 8956.6488152657. The cubic root of 80221558 is about 431.2843482268.

The spelling of 80221558 in words is "eighty million, two hundred twenty-one thousand, five hundred fifty-eight".