53408910817 has 2 divisors, whose sum is σ = 53408910818. Its totient is φ = 53408910816.

The previous prime is 53408910803. The next prime is 53408910827. The reversal of 53408910817 is 71801980435.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37230088401 + 16178822416 = 192951^2 + 127196^2 .

It is a cyclic number.

It is not a de Polignac number, because 53408910817 - 2³⁵ = 19049172449 is a prime.

It is not a weakly prime, because it can be changed into another prime (53408910827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26704455408 + 26704455409.

It is an arithmetic number, because the mean of its divisors is an integer number (26704455409).

Almost surely, 2^53408910817 is an apocalyptic number.

It is an amenable number.

53408910817 is a deficient number, since it is larger than the sum of its proper divisors (1).

53408910817 is an equidigital number, since it uses as much as digits as its factorization.

53408910817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 53408910817 in words is "fifty-three billion, four hundred eight million, nine hundred ten thousand, eight hundred seventeen".