485587561 has 2 divisors, whose sum is σ = 485587562. Its totient is φ = 485587560.

The previous prime is 485587547. The next prime is 485587567. The reversal of 485587561 is 165785584.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256640400 + 228947161 = 16020^2 + 15131^2 .

It is a cyclic number.

It is not a de Polignac number, because 485587561 - 2²⁷ = 351369833 is a prime.

It is not a weakly prime, because it can be changed into another prime (485587567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242793780 + 242793781.

It is an arithmetic number, because the mean of its divisors is an integer number (242793781).

Almost surely, 2^485587561 is an apocalyptic number.

It is an amenable number.

485587561 is a deficient number, since it is larger than the sum of its proper divisors (1).

485587561 is an equidigital number, since it uses as much as digits as its factorization.

485587561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344000, while the sum is 49.

The square root of 485587561 is about 22036.0513931149. The cubic root of 485587561 is about 785.9999487425. Note that the first 4 decimals are identical.

It can be divided in two parts, 4855 and 87561, that added together give a square (92416 = 304²).

The spelling of 485587561 in words is "four hundred eighty-five million, five hundred eighty-seven thousand, five hundred sixty-one".