78055 has 8 divisors (see below), whose sum is σ = 95472. Its totient is φ = 61248.

The previous prime is 78049. The next prime is 78059. The reversal of 78055 is 55087.

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

It is a cyclic number.

It is not a de Polignac number, because 78055 - 2⁹ = 77543 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219 + ... + 451.

It is an arithmetic number, because the mean of its divisors is an integer number (11934).

78055 is a Friedman number, since it can be written as 5^8/5-70, using all its digits and the basic arithmetic operations.

2⁷⁸⁰⁵⁵ is an apocalyptic number.

78055 is a deficient number, since it is larger than the sum of its proper divisors (17417).

78055 is a wasteful number, since it uses less digits than its factorization.

78055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 78055 is about 279.3832493189. The cubic root of 78055 is about 42.7366270313.

The spelling of 78055 in words is "seventy-eight thousand, fifty-five".