54220813 has 8 divisors (see below), whose sum is σ = 57146720. Its totient is φ = 51302160.

The previous prime is 54220801. The next prime is 54220843. The reversal of 54220813 is 31802245.

54220813 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 54220813 - 2¹⁷ = 54089741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54220843) 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, 21031 + ... + 23467.

It is an arithmetic number, because the mean of its divisors is an integer number (7143340).

Almost surely, 2^54220813 is an apocalyptic number.

It is an amenable number.

54220813 is a deficient number, since it is larger than the sum of its proper divisors (2925907).

54220813 is a wasteful number, since it uses less digits than its factorization.

54220813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3627.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 54220813 is about 7363.4783220975. The cubic root of 54220813 is about 378.4908123718.

The spelling of 54220813 in words is "fifty-four million, two hundred twenty thousand, eight hundred thirteen".