2006504 has 8 divisors (see below), whose sum is σ = 3762210. Its totient is φ = 1003248.

The previous prime is 2006503. The next prime is 2006507. The reversal of 2006504 is 4056002.

It can be written as a sum of positive squares in only one way, i.e., 1214404 + 792100 = 1102^2 + 890^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2006503) 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, 125399 + ... + 125414.

2^2006504 is an apocalyptic number.

It is an amenable number.

2006504 is a deficient number, since it is larger than the sum of its proper divisors (1755706).

2006504 is a wasteful number, since it uses less digits than its factorization.

2006504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250819 (or 250815 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2006504 is about 1416.5112071565. The cubic root of 2006504 is about 126.1285326504.

The spelling of 2006504 in words is "two million, six thousand, five hundred four".