65548789 has 2 divisors, whose sum is σ = 65548790. Its totient is φ = 65548788.

The previous prime is 65548771. The next prime is 65548799. The reversal of 65548789 is 98784556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57380625 + 8168164 = 7575^2 + 2858^2 .

It is a cyclic number.

It is not a de Polignac number, because 65548789 - 2¹⁹ = 65024501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65548799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32774394 + 32774395.

It is an arithmetic number, because the mean of its divisors is an integer number (32774395).

Almost surely, 2^65548789 is an apocalyptic number.

It is an amenable number.

65548789 is a deficient number, since it is larger than the sum of its proper divisors (1).

65548789 is an equidigital number, since it uses as much as digits as its factorization.

65548789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 52.

The square root of 65548789 is about 8096.2206615186. The cubic root of 65548789 is about 403.2009600586.

The spelling of 65548789 in words is "sixty-five million, five hundred forty-eight thousand, seven hundred eighty-nine".