520150534534409 has 2 divisors, whose sum is σ = 520150534534410. Its totient is φ = 520150534534408.

The previous prime is 520150534534391. The next prime is 520150534534481. The reversal of 520150534534409 is 904435435051025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278303403975184 + 241847130559225 = 16682428^2 + 15551435^2 .

It is a cyclic number.

It is not a de Polignac number, because 520150534534409 - 2⁸ = 520150534534153 is a prime.

It is not a weakly prime, because it can be changed into another prime (520150534531409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260075267267204 + 260075267267205.

It is an arithmetic number, because the mean of its divisors is an integer number (260075267267205).

Almost surely, 2^{520150534534409} is an apocalyptic number.

It is an amenable number.

520150534534409 is a deficient number, since it is larger than the sum of its proper divisors (1).

520150534534409 is an equidigital number, since it uses as much as digits as its factorization.

520150534534409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480000, while the sum is 50.

The spelling of 520150534534409 in words is "five hundred twenty trillion, one hundred fifty billion, five hundred thirty-four million, five hundred thirty-four thousand, four hundred nine".