52180323241261 has 4 divisors (see below), whose sum is σ = 52468612320124. Its totient is φ = 51892034162400.

The previous prime is 52180323241247. The next prime is 52180323241313. The reversal of 52180323241261 is 16214232308125.

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 3803986045161 + 48376337196100 = 1950381^2 + 6955310^2 .

It is a cyclic number.

It is not a de Polignac number, because 52180323241261 - 2⁵ = 52180323241229 is a prime.

It is a super-4 number, since 4×52180323241261⁴ (a number of 56 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52180323241561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144144539160 + ... + 144144539521.

It is an arithmetic number, because the mean of its divisors is an integer number (13117153080031).

Almost surely, 2^{52180323241261} is an apocalyptic number.

It is an amenable number.

52180323241261 is a deficient number, since it is larger than the sum of its proper divisors (288289078863).

52180323241261 is a wasteful number, since it uses less digits than its factorization.

52180323241261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288289078862.

The product of its (nonzero) digits is 138240, while the sum is 40.

Adding to 52180323241261 its reverse (16214232308125), we get a palindrome (68394555549386).

The spelling of 52180323241261 in words is "fifty-two trillion, one hundred eighty billion, three hundred twenty-three million, two hundred forty-one thousand, two hundred sixty-one".