52442101521361 has 4 divisors (see below), whose sum is σ = 52442121099172. Its totient is φ = 52442081943552.

The previous prime is 52442101521323. The next prime is 52442101521377. The reversal of 52442101521361 is 16312510124425.

52442101521361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8819973384336 + 43622128137025 = 2969844^2 + 6604705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52442101521361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52442101521361.

It is not an unprimeable number, because it can be changed into a prime (52442101551361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4985136 + ... + 11390161.

It is an arithmetic number, because the mean of its divisors is an integer number (13110530274793).

Almost surely, 2^{52442101521361} is an apocalyptic number.

It is an amenable number.

52442101521361 is a deficient number, since it is larger than the sum of its proper divisors (19577811).

52442101521361 is a wasteful number, since it uses less digits than its factorization.

52442101521361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19577810.

The product of its (nonzero) digits is 57600, while the sum is 37.

Adding to 52442101521361 its reverse (16312510124425), we get a palindrome (68754611645786).

The spelling of 52442101521361 in words is "fifty-two trillion, four hundred forty-two billion, one hundred one million, five hundred twenty-one thousand, three hundred sixty-one".