65508500831 has 2 divisors, whose sum is σ = 65508500832. Its totient is φ = 65508500830.

The previous prime is 65508500773. The next prime is 65508500843. The reversal of 65508500831 is 13800580556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65508500831 - 2⁶ = 65508500767 is a prime.

It is a super-2 number, since 2×65508500831² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65508500131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32754250415 + 32754250416.

It is an arithmetic number, because the mean of its divisors is an integer number (32754250416).

Almost surely, 2^65508500831 is an apocalyptic number.

65508500831 is a deficient number, since it is larger than the sum of its proper divisors (1).

65508500831 is an equidigital number, since it uses as much as digits as its factorization.

65508500831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 65508500831 in words is "sixty-five billion, five hundred eight million, five hundred thousand, eight hundred thirty-one".