1328899553 has 2 divisors, whose sum is σ = 1328899554. Its totient is φ = 1328899552.

The previous prime is 1328899493. The next prime is 1328899597. The reversal of 1328899553 is 3559988231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1325469649 + 3429904 = 36407^2 + 1852^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1328899553 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1328899495 and 1328899504.

It is not a weakly prime, because it can be changed into another prime (1328899853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664449776 + 664449777.

It is an arithmetic number, because the mean of its divisors is an integer number (664449777).

Almost surely, 2^1328899553 is an apocalyptic number.

It is an amenable number.

1328899553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328899553 is an equidigital number, since it uses as much as digits as its factorization.

1328899553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2332800, while the sum is 53.

The square root of 1328899553 is about 36454.0745733587. The cubic root of 1328899553 is about 1099.4210598147.

The spelling of 1328899553 in words is "one billion, three hundred twenty-eight million, eight hundred ninety-nine thousand, five hundred fifty-three".