65530273 has 2 divisors, whose sum is σ = 65530274. Its totient is φ = 65530272.

The previous prime is 65530247. The next prime is 65530279. The reversal of 65530273 is 37203556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55845729 + 9684544 = 7473^2 + 3112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65530273 is a prime.

It is equal to p_3870049 and since 65530273 and 3870049 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (65530279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32765136 + 32765137.

It is an arithmetic number, because the mean of its divisors is an integer number (32765137).

Almost surely, 2^65530273 is an apocalyptic number.

It is an amenable number.

65530273 is a deficient number, since it is larger than the sum of its proper divisors (1).

65530273 is an equidigital number, since it uses as much as digits as its factorization.

65530273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 65530273 is about 8095.0770842531. The cubic root of 65530273 is about 403.1629915359.

The spelling of 65530273 in words is "sixty-five million, five hundred thirty thousand, two hundred seventy-three".