6550001 has 2 divisors, whose sum is σ = 6550002. Its totient is φ = 6550000.

The previous prime is 6549979. The next prime is 6550007. The reversal of 6550001 is 1000556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5107600 + 1442401 = 2260^2 + 1201^2 .

It is a cyclic number.

It is not a de Polignac number, because 6550001 - 2⁶ = 6549937 is a prime.

It is not a weakly prime, because it can be changed into another prime (6550007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3275000 + 3275001.

It is an arithmetic number, because the mean of its divisors is an integer number (3275001).

Almost surely, 2^6550001 is an apocalyptic number.

It is an amenable number.

6550001 is a deficient number, since it is larger than the sum of its proper divisors (1).

6550001 is an equidigital number, since it uses as much as digits as its factorization.

6550001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 6550001 is about 2559.2969737801. The cubic root of 6550001 is about 187.1028726584.

Adding to 6550001 its reverse (1000556), we get a palindrome (7550557).

The spelling of 6550001 in words is "six million, five hundred fifty thousand, one".