52139332393 has 2 divisors, whose sum is σ = 52139332394. Its totient is φ = 52139332392.

The previous prime is 52139332381. The next prime is 52139332423. The reversal of 52139332393 is 39323393125.

52139332393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51873251049 + 266081344 = 227757^2 + 16312^2 .

It is a cyclic number.

It is not a de Polignac number, because 52139332393 - 2¹³ = 52139324201 is a prime.

It is not a weakly prime, because it can be changed into another prime (52139330393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26069666196 + 26069666197.

It is an arithmetic number, because the mean of its divisors is an integer number (26069666197).

Almost surely, 2^52139332393 is an apocalyptic number.

It is an amenable number.

52139332393 is a deficient number, since it is larger than the sum of its proper divisors (1).

52139332393 is an equidigital number, since it uses as much as digits as its factorization.

52139332393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 393660, while the sum is 43.

The spelling of 52139332393 in words is "fifty-two billion, one hundred thirty-nine million, three hundred thirty-two thousand, three hundred ninety-three".