54124321 has 2 divisors, whose sum is σ = 54124322. Its totient is φ = 54124320.

The previous prime is 54124319. The next prime is 54124327. The reversal of 54124321 is 12342145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34939921 + 19184400 = 5911^2 + 4380^2 .

It is a cyclic number.

It is not a de Polignac number, because 54124321 - 2¹ = 54124319 is a prime.

It is a super-2 number, since 2×54124321² = 5858884247422082, which contains 22 as substring.

Together with 54124319, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 54124292 and 54124301.

It is not a weakly prime, because it can be changed into another prime (54124327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27062160 + 27062161.

It is an arithmetic number, because the mean of its divisors is an integer number (27062161).

Almost surely, 2^54124321 is an apocalyptic number.

It is an amenable number.

54124321 is a deficient number, since it is larger than the sum of its proper divisors (1).

54124321 is an equidigital number, since it uses as much as digits as its factorization.

54124321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 22.

The square root of 54124321 is about 7356.9233379178. The cubic root of 54124321 is about 378.2661568107.

Adding to 54124321 its reverse (12342145), we get a palindrome (66466466).

It can be divided in two parts, 54124 and 321, that added together give a palindrome (54445).

The spelling of 54124321 in words is "fifty-four million, one hundred twenty-four thousand, three hundred twenty-one".