520551113639 has 2 divisors, whose sum is σ = 520551113640. Its totient is φ = 520551113638.

The previous prime is 520551113633. The next prime is 520551113647. The reversal of 520551113639 is 936311155025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520551113639 - 2¹⁶ = 520551048103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520551113596 and 520551113605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520551113633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260275556819 + 260275556820.

It is an arithmetic number, because the mean of its divisors is an integer number (260275556820).

Almost surely, 2^520551113639 is an apocalyptic number.

520551113639 is a deficient number, since it is larger than the sum of its proper divisors (1).

520551113639 is an equidigital number, since it uses as much as digits as its factorization.

520551113639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 121500, while the sum is 41.

The spelling of 520551113639 in words is "five hundred twenty billion, five hundred fifty-one million, one hundred thirteen thousand, six hundred thirty-nine".