52443543204121 has 16 divisors (see below), whose sum is σ = 54025366204368. Its totient is φ = 50888701152000.

The previous prime is 52443543204077. The next prime is 52443543204149. The reversal of 52443543204121 is 12140234534425.

It can be written as a sum of positive squares in 8 ways, for example, as 1720659204121 + 50722884000000 = 1311739^2 + 7122000^2 .

It is a cyclic number.

It is not a de Polignac number, because 52443543204121 - 2¹³ = 52443543195929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52443543204161) 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, 13658350 + ... + 17071543.

It is an arithmetic number, because the mean of its divisors is an integer number (3376585387773).

Almost surely, 2^{52443543204121} is an apocalyptic number.

It is an amenable number.

52443543204121 is a deficient number, since it is larger than the sum of its proper divisors (1581823000247).

52443543204121 is a wasteful number, since it uses less digits than its factorization.

52443543204121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30730332.

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 52443543204121 its reverse (12140234534425), we get a palindrome (64583777738546).

The spelling of 52443543204121 in words is "fifty-two trillion, four hundred forty-three billion, five hundred forty-three million, two hundred four thousand, one hundred twenty-one".