65217357053 has 2 divisors, whose sum is σ = 65217357054. Its totient is φ = 65217357052.

The previous prime is 65217357043. The next prime is 65217357097. The reversal of 65217357053 is 35075371256.

It is an a-pointer prime, because the next prime (65217357097) can be obtained adding 65217357053 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53973511684 + 11243845369 = 232322^2 + 106037^2 .

It is a cyclic number.

It is not a de Polignac number, because 65217357053 - 2²⁰ = 65216308477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65217356995 and 65217357013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65217357013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32608678526 + 32608678527.

It is an arithmetic number, because the mean of its divisors is an integer number (32608678527).

Almost surely, 2^65217357053 is an apocalyptic number.

It is an amenable number.

65217357053 is a deficient number, since it is larger than the sum of its proper divisors (1).

65217357053 is an equidigital number, since it uses as much as digits as its factorization.

65217357053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 661500, while the sum is 44.

The spelling of 65217357053 in words is "sixty-five billion, two hundred seventeen million, three hundred fifty-seven thousand, fifty-three".