6250001609 has 2 divisors, whose sum is σ = 6250001610. Its totient is φ = 6250001608.

The previous prime is 6250001573. The next prime is 6250001647. The reversal of 6250001609 is 9061000526.

6250001609 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5986426384 + 263575225 = 77372^2 + 16235^2 .

It is a cyclic number.

It is not a de Polignac number, because 6250001609 - 2²⁸ = 5981566153 is a prime.

It is a super-2 number, since 2×6250001609² = 78125040225005177762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6250001909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3125000804 + 3125000805.

It is an arithmetic number, because the mean of its divisors is an integer number (3125000805).

Almost surely, 2^6250001609 is an apocalyptic number.

It is an amenable number.

6250001609 is a deficient number, since it is larger than the sum of its proper divisors (1).

6250001609 is an equidigital number, since it uses as much as digits as its factorization.

6250001609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 6250001609 is about 79056.9516804183. The cubic root of 6250001609 is about 1842.0159073897.

The spelling of 6250001609 in words is "six billion, two hundred fifty million, one thousand, six hundred nine".