500505505531 has 2 divisors, whose sum is σ = 500505505532. Its totient is φ = 500505505530.

The previous prime is 500505505501. The next prime is 500505505579. The reversal of 500505505531 is 135505505005.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 500505505531 - 2¹¹ = 500505503483 is a prime.

It is a super-2 number, since 2×500505505531² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (500505505501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250252752765 + 250252752766.

It is an arithmetic number, because the mean of its divisors is an integer number (250252752766).

Almost surely, 2^500505505531 is an apocalyptic number.

500505505531 is a deficient number, since it is larger than the sum of its proper divisors (1).

500505505531 is an equidigital number, since it uses as much as digits as its factorization.

500505505531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46875, while the sum is 34.

The spelling of 500505505531 in words is "five hundred billion, five hundred five million, five hundred five thousand, five hundred thirty-one".