65535779 has 2 divisors, whose sum is σ = 65535780. Its totient is φ = 65535778.

The previous prime is 65535751. The next prime is 65535781. The reversal of 65535779 is 97753556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65535779 - 2¹⁶ = 65470243 is a prime.

It is a Sophie Germain prime.

Together with 65535781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65535739) 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, 32767889 + 32767890.

It is an arithmetic number, because the mean of its divisors is an integer number (32767890).

Almost surely, 2^65535779 is an apocalyptic number.

65535779 is a deficient number, since it is larger than the sum of its proper divisors (1).

65535779 is an equidigital number, since it uses as much as digits as its factorization.

65535779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 992250, while the sum is 47.

The square root of 65535779 is about 8095.4171603445. The cubic root of 65535779 is about 403.1742827716.

The spelling of 65535779 in words is "sixty-five million, five hundred thirty-five thousand, seven hundred seventy-nine".