54143521 has 8 divisors (see below), whose sum is σ = 60346080. Its totient is φ = 48276288.

The previous prime is 54143503. The next prime is 54143549. The reversal of 54143521 is 12534145.

It is a happy number.

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 54143521 - 2⁹ = 54143009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54143501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83491 + ... + 84136.

It is an arithmetic number, because the mean of its divisors is an integer number (7543260).

Almost surely, 2^54143521 is an apocalyptic number.

It is an amenable number.

54143521 is a deficient number, since it is larger than the sum of its proper divisors (6202559).

54143521 is a wasteful number, since it uses less digits than its factorization.

54143521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167663.

The product of its digits is 2400, while the sum is 25.

The square root of 54143521 is about 7358.2281155180. The cubic root of 54143521 is about 378.3108800913.

Adding to 54143521 its reverse (12534145), we get a palindrome (66677666).

The spelling of 54143521 in words is "fifty-four million, one hundred forty-three thousand, five hundred twenty-one".