6520063607 has 2 divisors, whose sum is σ = 6520063608. Its totient is φ = 6520063606.

The previous prime is 6520063577. The next prime is 6520063633. The reversal of 6520063607 is 7063600256.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6520063607 is a prime.

It is a super-4 number, since 4×6520063607⁴ (a number of 40 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6520063637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3260031803 + 3260031804.

It is an arithmetic number, because the mean of its divisors is an integer number (3260031804).

Almost surely, 2^6520063607 is an apocalyptic number.

6520063607 is a deficient number, since it is larger than the sum of its proper divisors (1).

6520063607 is an equidigital number, since it uses as much as digits as its factorization.

6520063607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 6520063607 is about 80746.9108201670. The cubic root of 6520063607 is about 1868.1738019144.

The spelling of 6520063607 in words is "six billion, five hundred twenty million, sixty-three thousand, six hundred seven".