80555506 has 4 divisors (see below), whose sum is σ = 120833262. Its totient is φ = 40277752.

The previous prime is 80555491. The next prime is 80555513. The reversal of 80555506 is 60555508.

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

It can be written as a sum of positive squares in only one way, i.e., 64080025 + 16475481 = 8005^2 + 4059^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20138875 + ... + 20138878.

Almost surely, 2^80555506 is an apocalyptic number.

80555506 is a deficient number, since it is larger than the sum of its proper divisors (40277756).

80555506 is a wasteful number, since it uses less digits than its factorization.

80555506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40277755.

The product of its (nonzero) digits is 30000, while the sum is 34.

The square root of 80555506 is about 8975.2719178864. The cubic root of 80555506 is about 431.8819729293.

The spelling of 80555506 in words is "eighty million, five hundred fifty-five thousand, five hundred six".