53665265132959 has 2 divisors, whose sum is σ = 53665265132960. Its totient is φ = 53665265132958.

The previous prime is 53665265132953. The next prime is 53665265132981. The reversal of 53665265132959 is 95923156256635.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53665265132959 - 2³ = 53665265132951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53665265132894 and 53665265132903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53665265132951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26832632566479 + 26832632566480.

It is an arithmetic number, because the mean of its divisors is an integer number (26832632566480).

Almost surely, 2^{53665265132959} is an apocalyptic number.

53665265132959 is a deficient number, since it is larger than the sum of its proper divisors (1).

53665265132959 is an equidigital number, since it uses as much as digits as its factorization.

53665265132959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 393660000, while the sum is 67.

The spelling of 53665265132959 in words is "fifty-three trillion, six hundred sixty-five billion, two hundred sixty-five million, one hundred thirty-two thousand, nine hundred fifty-nine".