54218791 has 8 divisors (see below), whose sum is σ = 59232384. Its totient is φ = 49219320.

The previous prime is 54218767. The next prime is 54218803. The reversal of 54218791 is 19781245.

54218791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 54218791 - 2¹⁵ = 54186023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54218791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54218701) 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 7 ways as a sum of consecutive naturals, for example, 5526 + ... + 11788.

It is an arithmetic number, because the mean of its divisors is an integer number (7404048).

Almost surely, 2^54218791 is an apocalyptic number.

54218791 is a deficient number, since it is larger than the sum of its proper divisors (5013593).

54218791 is a wasteful number, since it uses less digits than its factorization.

54218791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7061.

The product of its digits is 20160, while the sum is 37.

The square root of 54218791 is about 7363.3410215744. The cubic root of 54218791 is about 378.4861074262.

The spelling of 54218791 in words is "fifty-four million, two hundred eighteen thousand, seven hundred ninety-one".