505535206031 has 2 divisors, whose sum is σ = 505535206032. Its totient is φ = 505535206030.

The previous prime is 505535206019. The next prime is 505535206067. The reversal of 505535206031 is 130602535505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505535206031 - 2³⁰ = 504461464207 is a prime.

It is a super-2 number, since 2×505535206031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505535205982 and 505535206000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505535206081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252767603015 + 252767603016.

It is an arithmetic number, because the mean of its divisors is an integer number (252767603016).

Almost surely, 2^505535206031 is an apocalyptic number.

505535206031 is a deficient number, since it is larger than the sum of its proper divisors (1).

505535206031 is an equidigital number, since it uses as much as digits as its factorization.

505535206031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67500, while the sum is 35.

The spelling of 505535206031 in words is "five hundred five billion, five hundred thirty-five million, two hundred six thousand, thirty-one".