52140145322321 has 16 divisors (see below), whose sum is σ = 62734524927360. Its totient is φ = 42332927927040.

The previous prime is 52140145322269. The next prime is 52140145322329. The reversal of 52140145322321 is 12322354104125.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52140145322321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52140145322329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28928450 + ... + 30677931.

It is an arithmetic number, because the mean of its divisors is an integer number (3920907807960).

Almost surely, 2^{52140145322321} is an apocalyptic number.

It is an amenable number.

52140145322321 is a deficient number, since it is larger than the sum of its proper divisors (10594379605039).

52140145322321 is a wasteful number, since it uses less digits than its factorization.

52140145322321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59612984.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 52140145322321 its reverse (12322354104125), we get a palindrome (64462499426446).

The spelling of 52140145322321 in words is "fifty-two trillion, one hundred forty billion, one hundred forty-five million, three hundred twenty-two thousand, three hundred twenty-one".