54218555 has 8 divisors (see below), whose sum is σ = 65293872. Its totient is φ = 43220448.

The previous prime is 54218551. The next prime is 54218557. The reversal of 54218555 is 55581245.

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 54218555 - 2² = 54218551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54218551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17744 + ... + 20573.

It is an arithmetic number, because the mean of its divisors is an integer number (8161734).

Almost surely, 2^54218555 is an apocalyptic number.

54218555 is a deficient number, since it is larger than the sum of its proper divisors (11075317).

54218555 is a wasteful number, since it uses less digits than its factorization.

54218555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38605.

The product of its digits is 40000, while the sum is 35.

The square root of 54218555 is about 7363.3249962228. The cubic root of 54218555 is about 378.4855582755.

The spelling of 54218555 in words is "fifty-four million, two hundred eighteen thousand, five hundred fifty-five".