52020531325391 has 2 divisors, whose sum is σ = 52020531325392. Its totient is φ = 52020531325390.

The previous prime is 52020531325387. The next prime is 52020531325507. The reversal of 52020531325391 is 19352313502025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52020531325391 - 2² = 52020531325387 is a prime.

It is a super-2 number, since 2×52020531325391² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52020531325381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26010265662695 + 26010265662696.

It is an arithmetic number, because the mean of its divisors is an integer number (26010265662696).

Almost surely, 2^{52020531325391} is an apocalyptic number.

52020531325391 is a deficient number, since it is larger than the sum of its proper divisors (1).

52020531325391 is an equidigital number, since it uses as much as digits as its factorization.

52020531325391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243000, while the sum is 41.

The spelling of 52020531325391 in words is "fifty-two trillion, twenty billion, five hundred thirty-one million, three hundred twenty-five thousand, three hundred ninety-one".