54432521 has 16 divisors (see below), whose sum is σ = 67713408. Its totient is φ = 42988800.

The previous prime is 54432509. The next prime is 54432541. The reversal of 54432521 is 12523445.

It is a happy number.

54432521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 54432521 - 2⁶ = 54432457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54432541) 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 15 ways as a sum of consecutive naturals, for example, 8765 + ... + 13626.

It is an arithmetic number, because the mean of its divisors is an integer number (4232088).

Almost surely, 2^54432521 is an apocalyptic number.

It is an amenable number.

54432521 is a deficient number, since it is larger than the sum of its proper divisors (13280887).

54432521 is a wasteful number, since it uses less digits than its factorization.

54432521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22432.

The product of its digits is 4800, while the sum is 26.

The square root of 54432521 is about 7377.8398600132. The cubic root of 54432521 is about 378.9827850058.

Adding to 54432521 its reverse (12523445), we get a palindrome (66955966).

The spelling of 54432521 in words is "fifty-four million, four hundred thirty-two thousand, five hundred twenty-one".