54013021 has 4 divisors (see below), whose sum is σ = 54029052. Its totient is φ = 53996992.

The previous prime is 54013019. The next prime is 54013027. The reversal of 54013021 is 12031045.

54013021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3404025 + 50608996 = 1845^2 + 7114^2 .

It is a cyclic number.

It is not a de Polignac number, because 54013021 - 2¹ = 54013019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54012986 and 54013004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54013027) 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 3 ways as a sum of consecutive naturals, for example, 790 + ... + 10423.

It is an arithmetic number, because the mean of its divisors is an integer number (13507263).

Almost surely, 2^54013021 is an apocalyptic number.

It is an amenable number.

54013021 is a deficient number, since it is larger than the sum of its proper divisors (16031).

54013021 is a wasteful number, since it uses less digits than its factorization.

54013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16030.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 54013021 is about 7349.3551417794. The cubic root of 54013021 is about 378.0066929565.

Adding to 54013021 its reverse (12031045), we get a palindrome (66044066).

The spelling of 54013021 in words is "fifty-four million, thirteen thousand, twenty-one".