65485169 has 2 divisors, whose sum is σ = 65485170. Its totient is φ = 65485168.

The previous prime is 65485151. The next prime is 65485193. The reversal of 65485169 is 96158456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63808144 + 1677025 = 7988^2 + 1295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65485169 is a prime.

It is a super-2 number, since 2×65485169² = 8576614717917122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (65485769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32742584 + 32742585.

It is an arithmetic number, because the mean of its divisors is an integer number (32742585).

Almost surely, 2^65485169 is an apocalyptic number.

It is an amenable number.

65485169 is a deficient number, since it is larger than the sum of its proper divisors (1).

65485169 is an equidigital number, since it uses as much as digits as its factorization.

65485169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 44.

The square root of 65485169 is about 8092.2907140068. The cubic root of 65485169 is about 403.0704722754.

The spelling of 65485169 in words is "sixty-five million, four hundred eighty-five thousand, one hundred sixty-nine".