54781018 has 8 divisors (see below), whose sum is σ = 82392948. Its totient is φ = 27316704.

The previous prime is 54780983. The next prime is 54781033. The reversal of 54781018 is 81018745.

54781018 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 53333809 + 1447209 = 7303^2 + 1203^2 .

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

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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, 35971 + ... + 37462.

Almost surely, 2^54781018 is an apocalyptic number.

54781018 is a deficient number, since it is larger than the sum of its proper divisors (27611930).

54781018 is a wasteful number, since it uses less digits than its factorization.

54781018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73808.

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 54781018 is about 7401.4199988921. The cubic root of 54781018 is about 379.7898607308.

The spelling of 54781018 in words is "fifty-four million, seven hundred eighty-one thousand, eighteen".