54780818 has 8 divisors (see below), whose sum is σ = 82898748. Its totient is φ = 27147904.

The previous prime is 54780811. The next prime is 54780829. The reversal of 54780818 is 81808745.

54780818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41770369 + 13010449 = 6463^2 + 3607^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (54780811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120971 + ... + 121422.

Almost surely, 2^54780818 is an apocalyptic number.

54780818 is a deficient number, since it is larger than the sum of its proper divisors (28117930).

54780818 is a wasteful number, since it uses less digits than its factorization.

54780818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242508.

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 54780818 is about 7401.4064879589. The cubic root of 54780818 is about 379.7893985387.

The spelling of 54780818 in words is "fifty-four million, seven hundred eighty thousand, eight hundred eighteen".