55353901633 has 2 divisors, whose sum is σ = 55353901634. Its totient is φ = 55353901632.

The previous prime is 55353901609. The next prime is 55353901643. The reversal of 55353901633 is 33610935355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42360637489 + 12993264144 = 205817^2 + 113988^2 .

It is a cyclic number.

It is not a de Polignac number, because 55353901633 - 2⁹ = 55353901121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55353901633.

It is not a weakly prime, because it can be changed into another prime (55353901643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27676950816 + 27676950817.

It is an arithmetic number, because the mean of its divisors is an integer number (27676950817).

Almost surely, 2^55353901633 is an apocalyptic number.

It is an amenable number.

55353901633 is a deficient number, since it is larger than the sum of its proper divisors (1).

55353901633 is an equidigital number, since it uses as much as digits as its factorization.

55353901633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 546750, while the sum is 43.

The spelling of 55353901633 in words is "fifty-five billion, three hundred fifty-three million, nine hundred one thousand, six hundred thirty-three".