52550205452321 has 2 divisors, whose sum is σ = 52550205452322. Its totient is φ = 52550205452320.

The previous prime is 52550205452263. The next prime is 52550205452351. The reversal of 52550205452321 is 12325450205525.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44871764452321 + 7678441000000 = 6698639^2 + 2771000^2 .

It is a cyclic number.

It is not a de Polignac number, because 52550205452321 - 2¹⁸ = 52550205190177 is a prime.

It is a super-2 number, since 2×52550205452321² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52550205452351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26275102726160 + 26275102726161.

It is an arithmetic number, because the mean of its divisors is an integer number (26275102726161).

Almost surely, 2^{52550205452321} is an apocalyptic number.

It is an amenable number.

52550205452321 is a deficient number, since it is larger than the sum of its proper divisors (1).

52550205452321 is an equidigital number, since it uses as much as digits as its factorization.

52550205452321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600000, while the sum is 41.

Adding to 52550205452321 its reverse (12325450205525), we get a palindrome (64875655657846).

The spelling of 52550205452321 in words is "fifty-two trillion, five hundred fifty billion, two hundred five million, four hundred fifty-two thousand, three hundred twenty-one".