54216047 has 2 divisors, whose sum is σ = 54216048. Its totient is φ = 54216046.

The previous prime is 54216031. The next prime is 54216073. The reversal of 54216047 is 74061245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54216047 - 2⁴ = 54216031 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54210047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27108023 + 27108024.

It is an arithmetic number, because the mean of its divisors is an integer number (27108024).

Almost surely, 2^54216047 is an apocalyptic number.

54216047 is a deficient number, since it is larger than the sum of its proper divisors (1).

54216047 is an equidigital number, since it uses as much as digits as its factorization.

54216047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 54216047 is about 7363.1546907559. The cubic root of 54216047 is about 378.4797222881.

The spelling of 54216047 in words is "fifty-four million, two hundred sixteen thousand, forty-seven".