1683520005 has 8 divisors (see below), whose sum is σ = 2693632032. Its totient is φ = 897877328.

The previous prime is 1683519997. The next prime is 1683520009. The reversal of 1683520005 is 5000253861.

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

It is a cyclic number.

It is not a de Polignac number, because 1683520005 - 2³ = 1683519997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683520009) 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 in 7 ways as a sum of consecutive naturals, for example, 56117319 + ... + 56117348.

It is an arithmetic number, because the mean of its divisors is an integer number (336704004).

Almost surely, 2^1683520005 is an apocalyptic number.

1683520005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1683520005 is a deficient number, since it is larger than the sum of its proper divisors (1010112027).

1683520005 is a wasteful number, since it uses less digits than its factorization.

1683520005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112234675.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1683520005 is about 41030.7202593374. The cubic root of 1683520005 is about 1189.6140746528.

Adding to 1683520005 its reverse (5000253861), we get a palindrome (6683773866).

The spelling of 1683520005 in words is "one billion, six hundred eighty-three million, five hundred twenty thousand, five".