54216217 has 4 divisors (see below), whose sum is σ = 59144976. Its totient is φ = 49287460.

The previous prime is 54216203. The next prime is 54216233. The reversal of 54216217 is 71261245.

54216217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54216217 - 2¹¹ = 54214169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54216257) 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 3 ways as a sum of consecutive naturals, for example, 2464363 + ... + 2464384.

It is an arithmetic number, because the mean of its divisors is an integer number (14786244).

Almost surely, 2^54216217 is an apocalyptic number.

It is an amenable number.

54216217 is a deficient number, since it is larger than the sum of its proper divisors (4928759).

54216217 is a wasteful number, since it uses less digits than its factorization.

54216217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4928758.

The product of its digits is 3360, while the sum is 28.

The square root of 54216217 is about 7363.1662347118. The cubic root of 54216217 is about 378.4801178751.

The spelling of 54216217 in words is "fifty-four million, two hundred sixteen thousand, two hundred seventeen".