54211547 has 4 divisors (see below), whose sum is σ = 58381680. Its totient is φ = 50041416.

The previous prime is 54211543. The next prime is 54211571. The reversal of 54211547 is 74511245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54211547 - 2² = 54211543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54211543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2085047 + ... + 2085072.

It is an arithmetic number, because the mean of its divisors is an integer number (14595420).

Almost surely, 2^54211547 is an apocalyptic number.

54211547 is a deficient number, since it is larger than the sum of its proper divisors (4170133).

54211547 is a wasteful number, since it uses less digits than its factorization.

54211547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170132.

The product of its digits is 5600, while the sum is 29.

The square root of 54211547 is about 7362.8491088708. The cubic root of 54211547 is about 378.4692505676.

The spelling of 54211547 in words is "fifty-four million, two hundred eleven thousand, five hundred forty-seven".