52104039613 has 2 divisors, whose sum is σ = 52104039614. Its totient is φ = 52104039612.

The previous prime is 52104039607. The next prime is 52104039707. The reversal of 52104039613 is 31693040125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49687530649 + 2416508964 = 222907^2 + 49158^2 .

It is a cyclic number.

It is not a de Polignac number, because 52104039613 - 2¹⁷ = 52103908541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52104019613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26052019806 + 26052019807.

It is an arithmetic number, because the mean of its divisors is an integer number (26052019807).

Almost surely, 2^52104039613 is an apocalyptic number.

It is an amenable number.

52104039613 is a deficient number, since it is larger than the sum of its proper divisors (1).

52104039613 is an equidigital number, since it uses as much as digits as its factorization.

52104039613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

Adding to 52104039613 its reverse (31693040125), we get a palindrome (83797079738).

The spelling of 52104039613 in words is "fifty-two billion, one hundred four million, thirty-nine thousand, six hundred thirteen".