53364256643 has 2 divisors, whose sum is σ = 53364256644. Its totient is φ = 53364256642.

The previous prime is 53364256639. The next prime is 53364256709. The reversal of 53364256643 is 34665246335.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53364256643 - 2² = 53364256639 is a prime.

It is not a weakly prime, because it can be changed into another prime (53364256613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26682128321 + 26682128322.

It is an arithmetic number, because the mean of its divisors is an integer number (26682128322).

Almost surely, 2^53364256643 is an apocalyptic number.

53364256643 is a deficient number, since it is larger than the sum of its proper divisors (1).

53364256643 is an equidigital number, since it uses as much as digits as its factorization.

53364256643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4665600, while the sum is 47.

The spelling of 53364256643 in words is "fifty-three billion, three hundred sixty-four million, two hundred fifty-six thousand, six hundred forty-three".