53811321803 has 2 divisors, whose sum is σ = 53811321804. Its totient is φ = 53811321802.

The previous prime is 53811321763. The next prime is 53811321919. The reversal of 53811321803 is 30812311835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53811321803 - 2²⁶ = 53744212939 is a prime.

It is not a weakly prime, because it can be changed into another prime (53811321103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26905660901 + 26905660902.

It is an arithmetic number, because the mean of its divisors is an integer number (26905660902).

Almost surely, 2^53811321803 is an apocalyptic number.

53811321803 is a deficient number, since it is larger than the sum of its proper divisors (1).

53811321803 is an equidigital number, since it uses as much as digits as its factorization.

53811321803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 53811321803 in words is "fifty-three billion, eight hundred eleven million, three hundred twenty-one thousand, eight hundred three".