606250409 has 2 divisors, whose sum is σ = 606250410. Its totient is φ = 606250408.

The previous prime is 606250397. The next prime is 606250453. The reversal of 606250409 is 904052606.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 521665600 + 84584809 = 22840^2 + 9197^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-606250409 is a prime.

It is not a weakly prime, because it can be changed into another prime (606250609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303125204 + 303125205.

It is an arithmetic number, because the mean of its divisors is an integer number (303125205).

Almost surely, 2^606250409 is an apocalyptic number.

It is an amenable number.

606250409 is a deficient number, since it is larger than the sum of its proper divisors (1).

606250409 is an equidigital number, since it uses as much as digits as its factorization.

606250409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 606250409 is about 24622.1528100205. The cubic root of 606250409 is about 846.3513310133.

The spelling of 606250409 in words is "six hundred six million, two hundred fifty thousand, four hundred nine".