65575969 has 2 divisors, whose sum is σ = 65575970. Its totient is φ = 65575968.

The previous prime is 65575949. The next prime is 65576003. The reversal of 65575969 is 96957556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65399569 + 176400 = 8087^2 + 420^2 .

It is a cyclic number.

It is not a de Polignac number, because 65575969 - 2¹⁵ = 65543201 is a prime.

It is a super-2 number, since 2×65575969² = 8600415420577922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65575949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32787984 + 32787985.

It is an arithmetic number, because the mean of its divisors is an integer number (32787985).

Almost surely, 2^65575969 is an apocalyptic number.

It is an amenable number.

65575969 is a deficient number, since it is larger than the sum of its proper divisors (1).

65575969 is an equidigital number, since it uses as much as digits as its factorization.

65575969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2551500, while the sum is 52.

The square root of 65575969 is about 8097.8990485187. The cubic root of 65575969 is about 403.2566818494.

The spelling of 65575969 in words is "sixty-five million, five hundred seventy-five thousand, nine hundred sixty-nine".