52021235543 has 16 divisors (see below), whose sum is σ = 57949776864. Its totient is φ = 46475965440.

The previous prime is 52021235531. The next prime is 52021235549. The reversal of 52021235543 is 34553212025.

It is not a de Polignac number, because 52021235543 - 2¹⁸ = 52020973399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52021235549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 982805 + ... + 1034382.

It is an arithmetic number, because the mean of its divisors is an integer number (3621861054).

Almost surely, 2^52021235543 is an apocalyptic number.

52021235543 is a deficient number, since it is larger than the sum of its proper divisors (5928541321).

52021235543 is a wasteful number, since it uses less digits than its factorization.

52021235543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017282.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 52021235543 its reverse (34553212025), we get a palindrome (86574447568).

The spelling of 52021235543 in words is "fifty-two billion, twenty-one million, two hundred thirty-five thousand, five hundred forty-three".