520498377983 has 2 divisors, whose sum is σ = 520498377984. Its totient is φ = 520498377982.

The previous prime is 520498377947. The next prime is 520498378009. The reversal of 520498377983 is 389773894025.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520498377983 is a prime.

It is a super-2 number, since 2×520498377983² (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 (520498377913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260249188991 + 260249188992.

It is an arithmetic number, because the mean of its divisors is an integer number (260249188992).

Almost surely, 2^520498377983 is an apocalyptic number.

520498377983 is a deficient number, since it is larger than the sum of its proper divisors (1).

520498377983 is an equidigital number, since it uses as much as digits as its factorization.

520498377983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91445760, while the sum is 65.

The spelling of 520498377983 in words is "five hundred twenty billion, four hundred ninety-eight million, three hundred seventy-seven thousand, nine hundred eighty-three".