54271021 has 24 divisors (see below), whose sum is σ = 66704960. Its totient is φ = 43241472.

The previous prime is 54271001. The next prime is 54271027. The reversal of 54271021 is 12017245.

It is a happy number.

54271021 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 54271021 - 2⁵ = 54270989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54270983 and 54271001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54271027) 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 23 ways as a sum of consecutive naturals, for example, 281101 + ... + 281293.

Almost surely, 2^54271021 is an apocalyptic number.

It is an amenable number.

54271021 is a deficient number, since it is larger than the sum of its proper divisors (12433939).

54271021 is a wasteful number, since it uses less digits than its factorization.

54271021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 54271021 is about 7366.8867915830. The cubic root of 54271021 is about 378.6076027275.

Adding to 54271021 its reverse (12017245), we get a palindrome (66288266).

The spelling of 54271021 in words is "fifty-four million, two hundred seventy-one thousand, twenty-one".