6509492497 has 2 divisors, whose sum is σ = 6509492498. Its totient is φ = 6509492496.

The previous prime is 6509492471. The next prime is 6509492501. The reversal of 6509492497 is 7942949056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5976990721 + 532501776 = 77311^2 + 23076^2 .

It is a cyclic number.

It is not a de Polignac number, because 6509492497 - 2¹⁵ = 6509459729 is a prime.

It is not a weakly prime, because it can be changed into another prime (6509492447) 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, 3254746248 + 3254746249.

It is an arithmetic number, because the mean of its divisors is an integer number (3254746249).

Almost surely, 2^6509492497 is an apocalyptic number.

It is an amenable number.

6509492497 is a deficient number, since it is larger than the sum of its proper divisors (1).

6509492497 is an equidigital number, since it uses as much as digits as its factorization.

6509492497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The square root of 6509492497 is about 80681.4259727727. The cubic root of 6509492497 is about 1867.1636198801.

The spelling of 6509492497 in words is "six billion, five hundred nine million, four hundred ninety-two thousand, four hundred ninety-seven".