52207263115561 has 4 divisors (see below), whose sum is σ = 52836266285712. Its totient is φ = 51578259945412.

The previous prime is 52207263115559. The next prime is 52207263115649. The reversal of 52207263115561 is 16551136270225.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52207263115561 - 2¹ = 52207263115559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52207263115361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314501584951 + ... + 314501585116.

It is an arithmetic number, because the mean of its divisors is an integer number (13209066571428).

Almost surely, 2^{52207263115561} is an apocalyptic number.

It is an amenable number.

52207263115561 is a deficient number, since it is larger than the sum of its proper divisors (629003170151).

52207263115561 is an equidigital number, since it uses as much as digits as its factorization.

52207263115561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629003170150.

The product of its (nonzero) digits is 756000, while the sum is 46.

Adding to 52207263115561 its reverse (16551136270225), we get a palindrome (68758399385786).

The spelling of 52207263115561 in words is "fifty-two trillion, two hundred seven billion, two hundred sixty-three million, one hundred fifteen thousand, five hundred sixty-one".