78485056 has 112 divisors (see below), whose sum is σ = 184343040. Its totient is φ = 32808960.

The previous prime is 78485053. The next prime is 78485059. The reversal of 78485056 is 65058487.

It is an interprime number because it is at equal distance from previous prime (78485053) and next prime (78485059).

It is not an unprimeable number, because it can be changed into a prime (78485053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438375 + ... + 438553.

It is an arithmetic number, because the mean of its divisors is an integer number (1645920).

Almost surely, 2^78485056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78485056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92171520).

78485056 is an abundant number, since it is smaller than the sum of its proper divisors (105857984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78485056 is a wasteful number, since it uses less digits than its factorization.

78485056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 78485056 is about 8859.1791944852. The cubic root of 78485056 is about 428.1497132519.

The spelling of 78485056 in words is "seventy-eight million, four hundred eighty-five thousand, fifty-six".