65650499 has 2 divisors, whose sum is σ = 65650500. Its totient is φ = 65650498.

The previous prime is 65650489. The next prime is 65650601. The reversal of 65650499 is 99405656.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65650499 is a prime.

It is not a weakly prime, because it can be changed into another prime (65650439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32825249 + 32825250.

It is an arithmetic number, because the mean of its divisors is an integer number (32825250).

Almost surely, 2^65650499 is an apocalyptic number.

65650499 is a deficient number, since it is larger than the sum of its proper divisors (1).

65650499 is an equidigital number, since it uses as much as digits as its factorization.

65650499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 65650499 is about 8102.4995526072. The cubic root of 65650499 is about 403.4093970486.

The spelling of 65650499 in words is "sixty-five million, six hundred fifty thousand, four hundred ninety-nine".