52401251213 has 8 divisors (see below), whose sum is σ = 54213864600. Its totient is φ = 50589016128.

The previous prime is 52401251173. The next prime is 52401251239. The reversal of 52401251213 is 31215210425.

It can be written as a sum of positive squares in 4 ways, for example, as 25852459369 + 26548791844 = 160787^2 + 162938^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52401251213 - 2¹⁰ = 52401250189 is a prime.

It is a super-2 number, since 2×52401251213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52401241213) 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 7 ways as a sum of consecutive naturals, for example, 203183 + ... + 382211.

It is an arithmetic number, because the mean of its divisors is an integer number (6776733075).

Almost surely, 2^52401251213 is an apocalyptic number.

It is an amenable number.

52401251213 is a deficient number, since it is larger than the sum of its proper divisors (1812613387).

52401251213 is a wasteful number, since it uses less digits than its factorization.

52401251213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189151.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 52401251213 its reverse (31215210425), we get a palindrome (83616461638).

The spelling of 52401251213 in words is "fifty-two billion, four hundred one million, two hundred fifty-one thousand, two hundred thirteen".