53404160321 has 2 divisors, whose sum is σ = 53404160322. Its totient is φ = 53404160320.

The previous prime is 53404160311. The next prime is 53404160323. The reversal of 53404160321 is 12306140435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38657458225 + 14746702096 = 196615^2 + 121436^2 .

It is a cyclic number.

It is not a de Polignac number, because 53404160321 - 2³⁴ = 36224291137 is a prime.

Together with 53404160323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53404160323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26702080160 + 26702080161.

It is an arithmetic number, because the mean of its divisors is an integer number (26702080161).

Almost surely, 2^53404160321 is an apocalyptic number.

It is an amenable number.

53404160321 is a deficient number, since it is larger than the sum of its proper divisors (1).

53404160321 is an equidigital number, since it uses as much as digits as its factorization.

53404160321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 53404160321 in words is "fifty-three billion, four hundred four million, one hundred sixty thousand, three hundred twenty-one".