1328955553 has 2 divisors, whose sum is σ = 1328955554. Its totient is φ = 1328955552.

The previous prime is 1328955527. The next prime is 1328955601. The reversal of 1328955553 is 3555598231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1206033984 + 122921569 = 34728^2 + 11087^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1328955553 is a prime.

It is a super-2 number, since 2×1328955553² = 3532245723699071618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1328955053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664477776 + 664477777.

It is an arithmetic number, because the mean of its divisors is an integer number (664477777).

Almost surely, 2^1328955553 is an apocalyptic number.

It is an amenable number.

1328955553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328955553 is an equidigital number, since it uses as much as digits as its factorization.

1328955553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810000, while the sum is 46.

The square root of 1328955553 is about 36454.8426549889. The cubic root of 1328955553 is about 1099.4365028466.

The spelling of 1328955553 in words is "one billion, three hundred twenty-eight million, nine hundred fifty-five thousand, five hundred fifty-three".