65257061 has 2 divisors, whose sum is σ = 65257062. Its totient is φ = 65257060.

The previous prime is 65257051. The next prime is 65257063. The reversal of 65257061 is 16075256.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64480900 + 776161 = 8030^2 + 881^2 .

It is a cyclic number.

It is not a de Polignac number, because 65257061 - 2¹⁴ = 65240677 is a prime.

Together with 65257063, 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 (65257063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32628530 + 32628531.

It is an arithmetic number, because the mean of its divisors is an integer number (32628531).

Almost surely, 2^65257061 is an apocalyptic number.

It is an amenable number.

65257061 is a deficient number, since it is larger than the sum of its proper divisors (1).

65257061 is an equidigital number, since it uses as much as digits as its factorization.

65257061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 65257061 is about 8078.1842638058. The cubic root of 65257061 is about 402.6019154753.

The spelling of 65257061 in words is "sixty-five million, two hundred fifty-seven thousand, sixty-one".