520353883381 has 2 divisors, whose sum is σ = 520353883382. Its totient is φ = 520353883380.

The previous prime is 520353883373. The next prime is 520353883417. The reversal of 520353883381 is 183388353025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 492319739025 + 28034144356 = 701655^2 + 167434^2 .

It is a cyclic number.

It is not a de Polignac number, because 520353883381 - 2³ = 520353883373 is a prime.

It is a super-2 number, since 2×520353883381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520353880381) 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 as a sum of consecutive naturals, namely, 260176941690 + 260176941691.

It is an arithmetic number, because the mean of its divisors is an integer number (260176941691).

Almost surely, 2^520353883381 is an apocalyptic number.

It is an amenable number.

520353883381 is a deficient number, since it is larger than the sum of its proper divisors (1).

520353883381 is an equidigital number, since it uses as much as digits as its factorization.

520353883381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2073600, while the sum is 49.

The spelling of 520353883381 in words is "five hundred twenty billion, three hundred fifty-three million, eight hundred eighty-three thousand, three hundred eighty-one".