80555 has 4 divisors (see below), whose sum is σ = 96672. Its totient is φ = 64440.

The previous prime is 80537. The next prime is 80557. The reversal of 80555 is 55508.

80555 = T₁₇₇ + T₁₇₈ + ... + T₁₈₁.

It is a happy number.

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

It is not a de Polignac number, because 80555 - 2⁶ = 80491 is a prime.

It is a Duffinian number.

80555 is a modest number, since divided by 555 gives 80 as remainder.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 80555.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 80555.

It is not an unprimeable number, because it can be changed into a prime (80557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8051 + ... + 8060.

It is an arithmetic number, because the mean of its divisors is an integer number (24168).

2⁸⁰⁵⁵⁵ is an apocalyptic number.

80555 is a deficient number, since it is larger than the sum of its proper divisors (16117).

80555 is a wasteful number, since it uses less digits than its factorization.

80555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16116.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 80555 is about 283.8221273967. The cubic root of 80555 is about 43.1881068655.

The spelling of 80555 in words is "eighty thousand, five hundred fifty-five".