3550035661 has 2 divisors, whose sum is σ = 3550035662. Its totient is φ = 3550035660.

The previous prime is 3550035647. The next prime is 3550035683. The reversal of 3550035661 is 1665300553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2649675625 + 900360036 = 51475^2 + 30006^2 .

It is a cyclic number.

It is not a de Polignac number, because 3550035661 - 2¹⁹ = 3549511373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3550035611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1775017830 + 1775017831.

It is an arithmetic number, because the mean of its divisors is an integer number (1775017831).

Almost surely, 2^3550035661 is an apocalyptic number.

It is an amenable number.

3550035661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3550035661 is an equidigital number, since it uses as much as digits as its factorization.

3550035661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 34.

The square root of 3550035661 is about 59582.1756987776. The cubic root of 3550035661 is about 1525.4954099123.

The spelling of 3550035661 in words is "three billion, five hundred fifty million, thirty-five thousand, six hundred sixty-one".