53222815643 has 2 divisors, whose sum is σ = 53222815644. Its totient is φ = 53222815642.

The previous prime is 53222815627. The next prime is 53222815663. The reversal of 53222815643 is 34651822235.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53222815643 - 2⁴ = 53222815627 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53222815643.

It is not a weakly prime, because it can be changed into another prime (53222815663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26611407821 + 26611407822.

It is an arithmetic number, because the mean of its divisors is an integer number (26611407822).

Almost surely, 2^53222815643 is an apocalyptic number.

53222815643 is a deficient number, since it is larger than the sum of its proper divisors (1).

53222815643 is an equidigital number, since it uses as much as digits as its factorization.

53222815643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 41.

The spelling of 53222815643 in words is "fifty-three billion, two hundred twenty-two million, eight hundred fifteen thousand, six hundred forty-three".