520015582481 has 2 divisors, whose sum is σ = 520015582482. Its totient is φ = 520015582480.

The previous prime is 520015582459. The next prime is 520015582571. The reversal of 520015582481 is 184285510025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 515008604881 + 5006977600 = 717641^2 + 70760^2 .

It is a cyclic number.

It is not a de Polignac number, because 520015582481 - 2¹⁰ = 520015581457 is a prime.

It is a super-2 number, since 2×520015582481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (520015582441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260007791240 + 260007791241.

It is an arithmetic number, because the mean of its divisors is an integer number (260007791241).

Almost surely, 2^520015582481 is an apocalyptic number.

It is an amenable number.

520015582481 is a deficient number, since it is larger than the sum of its proper divisors (1).

520015582481 is an equidigital number, since it uses as much as digits as its factorization.

520015582481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128000, while the sum is 41.

The spelling of 520015582481 in words is "five hundred twenty billion, fifteen million, five hundred eighty-two thousand, four hundred eighty-one".