532661281 has 2 divisors, whose sum is σ = 532661282. Its totient is φ = 532661280.

The previous prime is 532661273. The next prime is 532661303. The reversal of 532661281 is 182166235.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 419430400 + 113230881 = 20480^2 + 10641^2 .

It is a cyclic number.

It is not a de Polignac number, because 532661281 - 2³ = 532661273 is a prime.

It is a super-2 number, since 2×532661281² = 567456080553121922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (532661581) 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, 266330640 + 266330641.

It is an arithmetic number, because the mean of its divisors is an integer number (266330641).

Almost surely, 2^532661281 is an apocalyptic number.

It is an amenable number.

532661281 is a deficient number, since it is larger than the sum of its proper divisors (1).

532661281 is an equidigital number, since it uses as much as digits as its factorization.

532661281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 532661281 is about 23079.4558211410. The cubic root of 532661281 is about 810.6194930636.

The spelling of 532661281 in words is "five hundred thirty-two million, six hundred sixty-one thousand, two hundred eighty-one".