605553401 has 2 divisors, whose sum is σ = 605553402. Its totient is φ = 605553400.

The previous prime is 605553397. The next prime is 605553409. The reversal of 605553401 is 104355506.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 335805625 + 269747776 = 18325^2 + 16424^2 .

It is a cyclic number.

It is not a de Polignac number, because 605553401 - 2² = 605553397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (605553409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302776700 + 302776701.

It is an arithmetic number, because the mean of its divisors is an integer number (302776701).

Almost surely, 2^605553401 is an apocalyptic number.

It is an amenable number.

605553401 is a deficient number, since it is larger than the sum of its proper divisors (1).

605553401 is an equidigital number, since it uses as much as digits as its factorization.

605553401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 605553401 is about 24607.9946562088. The cubic root of 605553401 is about 846.0268557032.

The spelling of 605553401 in words is "six hundred five million, five hundred fifty-three thousand, four hundred one".