5775661 has 2 divisors, whose sum is σ = 5775662. Its totient is φ = 5775660.

The previous prime is 5775617. The next prime is 5775667. The reversal of 5775661 is 1665775.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3276100 + 2499561 = 1810^2 + 1581^2 .

It is a cyclic number.

It is not a de Polignac number, because 5775661 - 2⁹ = 5775149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5775661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5775667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2887830 + 2887831.

It is an arithmetic number, because the mean of its divisors is an integer number (2887831).

Almost surely, 2^5775661 is an apocalyptic number.

It is an amenable number.

5775661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5775661 is an equidigital number, since it uses as much as digits as its factorization.

5775661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44100, while the sum is 37.

The square root of 5775661 is about 2403.2604935795. The cubic root of 5775661 is about 179.4185041400.

The spelling of 5775661 in words is "five million, seven hundred seventy-five thousand, six hundred sixty-one".