520082681 has 2 divisors, whose sum is σ = 520082682. Its totient is φ = 520082680.

The previous prime is 520082671. The next prime is 520082701. The reversal of 520082681 is 186280025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 512569600 + 7513081 = 22640^2 + 2741^2 .

It is a cyclic number.

It is not a de Polignac number, because 520082681 - 2²² = 515888377 is a prime.

It is a super-2 number, since 2×520082681² = 540971990152295522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (520082671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260041340 + 260041341.

It is an arithmetic number, because the mean of its divisors is an integer number (260041341).

Almost surely, 2^520082681 is an apocalyptic number.

It is an amenable number.

520082681 is a deficient number, since it is larger than the sum of its proper divisors (1).

520082681 is an equidigital number, since it uses as much as digits as its factorization.

520082681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 520082681 is about 22805.3213307772. The cubic root of 520082681 is about 804.1877696676.

The spelling of 520082681 in words is "five hundred twenty million, eighty-two thousand, six hundred eighty-one".