52360440661 has 4 divisors (see below), whose sum is σ = 52361021772. Its totient is φ = 52359859552.

The previous prime is 52360440659. The next prime is 52360440697. The reversal of 52360440661 is 16604406325.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 49637166436 + 2723274225 = 222794^2 + 52185^2 .

It is a cyclic number.

It is not a de Polignac number, because 52360440661 - 2¹ = 52360440659 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 52360440661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52360440641) 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 3 ways as a sum of consecutive naturals, for example, 123310 + ... + 346303.

It is an arithmetic number, because the mean of its divisors is an integer number (13090255443).

Almost surely, 2^52360440661 is an apocalyptic number.

It is an amenable number.

52360440661 is a deficient number, since it is larger than the sum of its proper divisors (581111).

52360440661 is a wasteful number, since it uses less digits than its factorization.

52360440661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581110.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 52360440661 its reverse (16604406325), we get a palindrome (68964846986).

The spelling of 52360440661 in words is "fifty-two billion, three hundred sixty million, four hundred forty thousand, six hundred sixty-one".