487556281 has 2 divisors, whose sum is σ = 487556282. Its totient is φ = 487556280.

The previous prime is 487556249. The next prime is 487556351. The reversal of 487556281 is 182655784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 289000000 + 198556281 = 17000^2 + 14091^2 .

It is a cyclic number.

It is not a de Polignac number, because 487556281 - 2⁵ = 487556249 is a prime.

It is a super-2 number, since 2×487556281² = 475422254285101922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (487556681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243778140 + 243778141.

It is an arithmetic number, because the mean of its divisors is an integer number (243778141).

Almost surely, 2^487556281 is an apocalyptic number.

It is an amenable number.

487556281 is a deficient number, since it is larger than the sum of its proper divisors (1).

487556281 is an equidigital number, since it uses as much as digits as its factorization.

487556281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 537600, while the sum is 46.

The square root of 487556281 is about 22080.6766427118. The cubic root of 487556281 is about 787.0607442349.

The spelling of 487556281 in words is "four hundred eighty-seven million, five hundred fifty-six thousand, two hundred eighty-one".