5663081 has 2 divisors, whose sum is σ = 5663082. Its totient is φ = 5663080.

The previous prime is 5663071. The next prime is 5663089. The reversal of 5663081 is 1803665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3534400 + 2128681 = 1880^2 + 1459^2 .

It is a cyclic number.

It is not a de Polignac number, because 5663081 - 2⁶ = 5663017 is a prime.

It is a super-2 number, since 2×5663081² = 64140972825122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5663089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2831540 + 2831541.

It is an arithmetic number, because the mean of its divisors is an integer number (2831541).

Almost surely, 2^5663081 is an apocalyptic number.

It is an amenable number.

5663081 is a deficient number, since it is larger than the sum of its proper divisors (1).

5663081 is an equidigital number, since it uses as much as digits as its factorization.

5663081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 5663081 is about 2379.7228830265. The cubic root of 5663081 is about 178.2450964387.

The spelling of 5663081 in words is "five million, six hundred sixty-three thousand, eighty-one".