65812057 has 2 divisors, whose sum is σ = 65812058. Its totient is φ = 65812056.

The previous prime is 65812051. The next prime is 65812063. The reversal of 65812057 is 75021856.

It is a balanced prime because it is at equal distance from previous prime (65812051) and next prime (65812063).

It can be written as a sum of positive squares in only one way, i.e., 49336576 + 16475481 = 7024^2 + 4059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65812057 is a prime.

It is not a weakly prime, because it can be changed into another prime (65812051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32906028 + 32906029.

It is an arithmetic number, because the mean of its divisors is an integer number (32906029).

Almost surely, 2^65812057 is an apocalyptic number.

It is an amenable number.

65812057 is a deficient number, since it is larger than the sum of its proper divisors (1).

65812057 is an equidigital number, since it uses as much as digits as its factorization.

65812057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 65812057 is about 8112.4630661717. The cubic root of 65812057 is about 403.7400400116.

The spelling of 65812057 in words is "sixty-five million, eight hundred twelve thousand, fifty-seven".