54216005 has 8 divisors (see below), whose sum is σ = 65950872. Its totient is φ = 42778368.

The previous prime is 54215971. The next prime is 54216013. The reversal of 54216005 is 50061245.

54216005 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 4 ways, for example, as 31684 + 54184321 = 178^2 + 7361^2 .

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 54216005 - 2¹² = 54211909 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 73904 + ... + 74633.

It is an arithmetic number, because the mean of its divisors is an integer number (8243859).

Almost surely, 2^54216005 is an apocalyptic number.

It is an amenable number.

54216005 is a deficient number, since it is larger than the sum of its proper divisors (11734867).

54216005 is a wasteful number, since it uses less digits than its factorization.

54216005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148615.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 54216005 is about 7363.1518387169. The cubic root of 54216005 is about 378.4796245547.

The spelling of 54216005 in words is "fifty-four million, two hundred sixteen thousand, five".