54218813 has 8 divisors (see below), whose sum is σ = 60118176. Its totient is φ = 48481200.

The previous prime is 54218803. The next prime is 54218821. The reversal of 54218813 is 31881245.

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 54218813 - 2⁸ = 54218557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54218813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54218803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39731 + ... + 41072.

It is an arithmetic number, because the mean of its divisors is an integer number (7514772).

Almost surely, 2^54218813 is an apocalyptic number.

It is an amenable number.

54218813 is a deficient number, since it is larger than the sum of its proper divisors (5899363).

54218813 is a wasteful number, since it uses less digits than its factorization.

54218813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80875.

The product of its digits is 7680, while the sum is 32.

The square root of 54218813 is about 7363.3425154613. The cubic root of 54218813 is about 378.4861586181.

The spelling of 54218813 in words is "fifty-four million, two hundred eighteen thousand, eight hundred thirteen".