54003121 has 4 divisors (see below), whose sum is σ = 54025972. Its totient is φ = 53980272.

The previous prime is 54003107. The next prime is 54003127. The reversal of 54003121 is 12130045.

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 29550096 + 24453025 = 5436^2 + 4945^2 .

It is a cyclic number.

It is not a de Polignac number, because 54003121 - 2⁹ = 54002609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54003095 and 54003104.

It is not an unprimeable number, because it can be changed into a prime (54003127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7410 + ... + 12763.

It is an arithmetic number, because the mean of its divisors is an integer number (13506493).

Almost surely, 2^54003121 is an apocalyptic number.

It is an amenable number.

54003121 is a deficient number, since it is larger than the sum of its proper divisors (22851).

54003121 is a wasteful number, since it uses less digits than its factorization.

54003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22850.

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

The square root of 54003121 is about 7348.6815824337. The cubic root of 54003121 is about 377.9835967052.

Adding to 54003121 its reverse (12130045), we get a palindrome (66133166).

The spelling of 54003121 in words is "fifty-four million, three thousand, one hundred twenty-one".