54510521 has 8 divisors (see below), whose sum is σ = 58767240. Its totient is φ = 50262912.

The previous prime is 54510497. The next prime is 54510527. The reversal of 54510521 is 12501545.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23863225 + 30647296 = 4885^2 + 5536^2 .

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 54510521 - 2⁶ = 54510457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54510527) 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 7 ways as a sum of consecutive naturals, for example, 15131 + ... + 18383.

It is an arithmetic number, because the mean of its divisors is an integer number (7345905).

Almost surely, 2^54510521 is an apocalyptic number.

It is an amenable number.

54510521 is a deficient number, since it is larger than the sum of its proper divisors (4256719).

54510521 is a wasteful number, since it uses less digits than its factorization.

54510521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 54510521 is about 7383.1240677643. The cubic root of 54510521 is about 379.1637218679.

The spelling of 54510521 in words is "fifty-four million, five hundred ten thousand, five hundred twenty-one".