65265857 has 2 divisors, whose sum is σ = 65265858. Its totient is φ = 65265856.

The previous prime is 65265853. The next prime is 65265877. The reversal of 65265857 is 75856256.

65265857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32821441 + 32444416 = 5729^2 + 5696^2 .

It is a cyclic number.

It is not a de Polignac number, because 65265857 - 2² = 65265853 is a prime.

It is a super-3 number, since 3×65265857³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65265853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32632928 + 32632929.

It is an arithmetic number, because the mean of its divisors is an integer number (32632929).

Almost surely, 2^65265857 is an apocalyptic number.

It is an amenable number.

65265857 is a deficient number, since it is larger than the sum of its proper divisors (1).

65265857 is an equidigital number, since it uses as much as digits as its factorization.

65265857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504000, while the sum is 44.

The square root of 65265857 is about 8078.7286747359. The cubic root of 65265857 is about 402.6200035683.

The spelling of 65265857 in words is "sixty-five million, two hundred sixty-five thousand, eight hundred fifty-seven".