530878561 has 2 divisors, whose sum is σ = 530878562. Its totient is φ = 530878560.

The previous prime is 530878531. The next prime is 530878589. The reversal of 530878561 is 165878035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 526977936 + 3900625 = 22956^2 + 1975^2 .

It is a cyclic number.

It is not a de Polignac number, because 530878561 - 2¹³ = 530870369 is a prime.

It is not a weakly prime, because it can be changed into another prime (530878501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265439280 + 265439281.

It is an arithmetic number, because the mean of its divisors is an integer number (265439281).

Almost surely, 2^530878561 is an apocalyptic number.

It is an amenable number.

530878561 is a deficient number, since it is larger than the sum of its proper divisors (1).

530878561 is an equidigital number, since it uses as much as digits as its factorization.

530878561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 530878561 is about 23040.8020910731. The cubic root of 530878561 is about 809.7141505199.

The spelling of 530878561 in words is "five hundred thirty million, eight hundred seventy-eight thousand, five hundred sixty-one".