54447778 has 16 divisors (see below), whose sum is σ = 101824704. Its totient is φ = 21213360.

The previous prime is 54447733. The next prime is 54447791. The reversal of 54447778 is 87774445.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176625 + ... + 176932.

It is an arithmetic number, because the mean of its divisors is an integer number (6364044).

Almost surely, 2^54447778 is an apocalyptic number.

54447778 is a deficient number, since it is larger than the sum of its proper divisors (47376926).

54447778 is a wasteful number, since it uses less digits than its factorization.

54447778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353577.

The product of its digits is 878080, while the sum is 46.

The square root of 54447778 is about 7378.8737623028. The cubic root of 54447778 is about 379.0181903119.

It can be divided in two parts, 54447 and 778, that added together give a square (55225 = 235²).

The spelling of 54447778 in words is "fifty-four million, four hundred forty-seven thousand, seven hundred seventy-eight".