54778404 has 12 divisors (see below), whose sum is σ = 127816304. Its totient is φ = 18259464.

The previous prime is 54778393. The next prime is 54778439. The reversal of 54778404 is 40487745.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2282422 + ... + 2282445.

Almost surely, 2^54778404 is an apocalyptic number.

It is an amenable number.

54778404 is an abundant number, since it is smaller than the sum of its proper divisors (73037900).

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

54778404 is a wasteful number, since it uses less digits than its factorization.

54778404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564874 (or 4564872 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 54778404 is about 7401.2434090496. The cubic root of 54778404 is about 379.7838197910.

The spelling of 54778404 in words is "fifty-four million, seven hundred seventy-eight thousand, four hundred four".