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65495669 is a prime number
BaseRepresentation
bin1111100111011…
…0001001110101
311120020112011112
43321312021311
5113231330134
610255444405
71423463321
oct371661165
9146215145
1065495669
1133a74958
1219b26705
1310752545
1489ac981
155b3b1ce
hex3e76275

65495669 has 2 divisors, whose sum is σ = 65495670. Its totient is φ = 65495668.

The previous prime is 65495657. The next prime is 65495671. The reversal of 65495669 is 96659456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65399569 + 96100 = 8087^2 + 310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-65495669 is a prime.

It is a super-2 number, since 2×654956692 = 8579365315515122, which contains 22 as substring.

Together with 65495671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65425669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32747834 + 32747835.

It is an arithmetic number, because the mean of its divisors is an integer number (32747835).

Almost surely, 265495669 is an apocalyptic number.

It is an amenable number.

65495669 is a deficient number, since it is larger than the sum of its proper divisors (1).

65495669 is an equidigital number, since it uses as much as digits as its factorization.

65495669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1749600, while the sum is 50.

The square root of 65495669 is about 8092.9394536225. The cubic root of 65495669 is about 403.0920141189.

The spelling of 65495669 in words is "sixty-five million, four hundred ninety-five thousand, six hundred sixty-nine".