52131532313 has 4 divisors (see below), whose sum is σ = 59578894080. Its totient is φ = 44684170548.

The previous prime is 52131532289. The next prime is 52131532319. The reversal of 52131532313 is 31323513125.

It is a happy number.

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 52131532313 - 2⁶ = 52131532249 is a prime.

It is a super-2 number, since 2×52131532313² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52131532319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3723680873 + ... + 3723680886.

It is an arithmetic number, because the mean of its divisors is an integer number (14894723520).

Almost surely, 2^52131532313 is an apocalyptic number.

It is an amenable number.

52131532313 is a deficient number, since it is larger than the sum of its proper divisors (7447361767).

52131532313 is an equidigital number, since it uses as much as digits as its factorization.

52131532313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7447361766.

The product of its digits is 8100, while the sum is 29.

The spelling of 52131532313 in words is "fifty-two billion, one hundred thirty-one million, five hundred thirty-two thousand, three hundred thirteen".