540240053321 has 2 divisors, whose sum is σ = 540240053322. Its totient is φ = 540240053320.

The previous prime is 540240053291. The next prime is 540240053369. The reversal of 540240053321 is 123350042045.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 517012769296 + 23227284025 = 719036^2 + 152405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540240053321 is a prime.

It is not a weakly prime, because it can be changed into another prime (540240053621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270120026660 + 270120026661.

It is an arithmetic number, because the mean of its divisors is an integer number (270120026661).

Almost surely, 2^540240053321 is an apocalyptic number.

It is an amenable number.

540240053321 is a deficient number, since it is larger than the sum of its proper divisors (1).

540240053321 is an equidigital number, since it uses as much as digits as its factorization.

540240053321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 540240053321 its reverse (123350042045), we get a palindrome (663590095366).

The spelling of 540240053321 in words is "five hundred forty billion, two hundred forty million, fifty-three thousand, three hundred twenty-one".