520128607 has 2 divisors, whose sum is σ = 520128608. Its totient is φ = 520128606.

The previous prime is 520128589. The next prime is 520128613. The reversal of 520128607 is 706821025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520128607 - 2¹¹ = 520126559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520128307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260064303 + 260064304.

It is an arithmetic number, because the mean of its divisors is an integer number (260064304).

Almost surely, 2^520128607 is an apocalyptic number.

520128607 is a deficient number, since it is larger than the sum of its proper divisors (1).

520128607 is an equidigital number, since it uses as much as digits as its factorization.

520128607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 520128607 is about 22806.3282226666. The cubic root of 520128607 is about 804.2114402889.

The spelling of 520128607 in words is "five hundred twenty million, one hundred twenty-eight thousand, six hundred seven".