534646561 has 2 divisors, whose sum is σ = 534646562. Its totient is φ = 534646560.

The previous prime is 534646493. The next prime is 534646589. The reversal of 534646561 is 165646435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 490888336 + 43758225 = 22156^2 + 6615^2 .

It is a cyclic number.

It is not a de Polignac number, because 534646561 - 2¹⁹ = 534122273 is a prime.

It is not a weakly prime, because it can be changed into another prime (534646591) 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, 267323280 + 267323281.

It is an arithmetic number, because the mean of its divisors is an integer number (267323281).

Almost surely, 2^534646561 is an apocalyptic number.

It is an amenable number.

534646561 is a deficient number, since it is larger than the sum of its proper divisors (1).

534646561 is an equidigital number, since it uses as much as digits as its factorization.

534646561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 40.

The square root of 534646561 is about 23122.4254999340. The cubic root of 534646561 is about 811.6253301731.

It can be divided in two parts, 53464 and 6561, that added together give a square (60025 = 245²).

The spelling of 534646561 in words is "five hundred thirty-four million, six hundred forty-six thousand, five hundred sixty-one".