54028521 has 12 divisors (see below), whose sum is σ = 79702272. Its totient is φ = 35252376.

The previous prime is 54028519. The next prime is 54028543. The reversal of 54028521 is 12582045.

It is a happy number.

54028521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54028521 - 2¹ = 54028519 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54028501) 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 11 ways as a sum of consecutive naturals, for example, 63441 + ... + 64286.

It is an arithmetic number, because the mean of its divisors is an integer number (6641856).

Almost surely, 2^54028521 is an apocalyptic number.

It is an amenable number.

54028521 is a deficient number, since it is larger than the sum of its proper divisors (25673751).

54028521 is a wasteful number, since it uses less digits than its factorization.

54028521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127780 (or 127777 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 54028521 is about 7350.4095804248. The cubic root of 54028521 is about 378.0428480864.

The spelling of 54028521 in words is "fifty-four million, twenty-eight thousand, five hundred twenty-one".