3556001 has 2 divisors, whose sum is σ = 3556002. Its totient is φ = 3556000.

The previous prime is 3555977. The next prime is 3556019. The reversal of 3556001 is 1006553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3066001 + 490000 = 1751^2 + 700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3556001 is a prime.

It is a super-2 number, since 2×3556001² = 25290286224002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3556031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1778000 + 1778001.

It is an arithmetic number, because the mean of its divisors is an integer number (1778001).

Almost surely, 2^3556001 is an apocalyptic number.

It is an amenable number.

3556001 is a deficient number, since it is larger than the sum of its proper divisors (1).

3556001 is an equidigital number, since it uses as much as digits as its factorization.

3556001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 3556001 is about 1885.7361957602. The cubic root of 3556001 is about 152.6349392401.

The spelling of 3556001 in words is "three million, five hundred fifty-six thousand, one".