53344553993 has 2 divisors, whose sum is σ = 53344553994. Its totient is φ = 53344553992.

The previous prime is 53344553971. The next prime is 53344554047. The reversal of 53344553993 is 39935544335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27727911289 + 25616642704 = 166517^2 + 160052^2 .

It is a cyclic number.

It is not a de Polignac number, because 53344553993 - 2⁸ = 53344553737 is a prime.

It is not a weakly prime, because it can be changed into another prime (53344553293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26672276996 + 26672276997.

It is an arithmetic number, because the mean of its divisors is an integer number (26672276997).

Almost surely, 2^53344553993 is an apocalyptic number.

It is an amenable number.

53344553993 is a deficient number, since it is larger than the sum of its proper divisors (1).

53344553993 is an equidigital number, since it uses as much as digits as its factorization.

53344553993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13122000, while the sum is 53.

The spelling of 53344553993 in words is "fifty-three billion, three hundred forty-four million, five hundred fifty-three thousand, nine hundred ninety-three".