1689133055 has 8 divisors (see below), whose sum is σ = 2065204512. Its totient is φ = 1325809888.

The previous prime is 1689133031. The next prime is 1689133081. The reversal of 1689133055 is 5503319861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1689133055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3186779 + ... + 3187308.

It is an arithmetic number, because the mean of its divisors is an integer number (258150564).

Almost surely, 2^1689133055 is an apocalyptic number.

1689133055 is a deficient number, since it is larger than the sum of its proper divisors (376071457).

1689133055 is an equidigital number, since it uses as much as digits as its factorization.

1689133055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6374145.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 1689133055 is about 41099.0639187804. The cubic root of 1689133055 is about 1190.9347115612.

The spelling of 1689133055 in words is "one billion, six hundred eighty-nine million, one hundred thirty-three thousand, fifty-five".