6505499983 has 2 divisors, whose sum is σ = 6505499984. Its totient is φ = 6505499982.

The previous prime is 6505499981. The next prime is 6505499989. The reversal of 6505499983 is 3899945056.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6505499983 - 2¹ = 6505499981 is a prime.

Together with 6505499981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6505499981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3252749991 + 3252749992.

It is an arithmetic number, because the mean of its divisors is an integer number (3252749992).

Almost surely, 2^6505499983 is an apocalyptic number.

6505499983 is a deficient number, since it is larger than the sum of its proper divisors (1).

6505499983 is an equidigital number, since it uses as much as digits as its factorization.

6505499983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10497600, while the sum is 58.

The square root of 6505499983 is about 80656.6797171815. The cubic root of 6505499983 is about 1866.7818081647.

The spelling of 6505499983 in words is "six billion, five hundred five million, four hundred ninety-nine thousand, nine hundred eighty-three".