54778178 has 96 divisors (see below), whose sum is σ = 113379840. Its totient is φ = 19595520.

The previous prime is 54778169. The next prime is 54778193. The reversal of 54778178 is 87187745.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 750350 + ... + 750422.

It is an arithmetic number, because the mean of its divisors is an integer number (1181040).

Almost surely, 2^54778178 is an apocalyptic number.

54778178 is an abundant number, since it is smaller than the sum of its proper divisors (58601662).

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

54778178 is a wasteful number, since it uses less digits than its factorization.

54778178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 145 counting only the distinct ones).

The product of its digits is 439040, while the sum is 47.

The square root of 54778178 is about 7401.2281413290. The cubic root of 54778178 is about 379.7832974972.

The spelling of 54778178 in words is "fifty-four million, seven hundred seventy-eight thousand, one hundred seventy-eight".