80378056 has 32 divisors (see below), whose sum is σ = 173066400. Its totient is φ = 34611840.

The previous prime is 80378041. The next prime is 80378059. The reversal of 80378056 is 65087308.

It is not an unprimeable number, because it can be changed into a prime (80378059) 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, 22365 + ... + 25708.

It is an arithmetic number, because the mean of its divisors is an integer number (5408325).

Almost surely, 2^80378056 is an apocalyptic number.

It is an amenable number.

80378056 is an abundant number, since it is smaller than the sum of its proper divisors (92688344).

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

80378056 is a wasteful number, since it uses less digits than its factorization.

80378056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48109 (or 48105 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 80378056 is about 8965.3809735002. The cubic root of 80378056 is about 431.5646190866.

The spelling of 80378056 in words is "eighty million, three hundred seventy-eight thousand, fifty-six".