210052543501 has 2 divisors, whose sum is σ = 210052543502. Its totient is φ = 210052543500.

The previous prime is 210052543499. The next prime is 210052543517. The reversal of 210052543501 is 105345250012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181718901225 + 28333642276 = 426285^2 + 168326^2 .

It is a cyclic number.

It is not a de Polignac number, because 210052543501 - 2¹ = 210052543499 is a prime.

Together with 210052543499, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 210052543501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210052543801) 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, 105026271750 + 105026271751.

It is an arithmetic number, because the mean of its divisors is an integer number (105026271751).

Almost surely, 2^210052543501 is an apocalyptic number.

It is an amenable number.

210052543501 is a deficient number, since it is larger than the sum of its proper divisors (1).

210052543501 is an equidigital number, since it uses as much as digits as its factorization.

210052543501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 210052543501 its reverse (105345250012), we get a palindrome (315397793513).

The spelling of 210052543501 in words is "two hundred ten billion, fifty-two million, five hundred forty-three thousand, five hundred one".