561514567 has 2 divisors, whose sum is σ = 561514568. Its totient is φ = 561514566.

The previous prime is 561514537. The next prime is 561514579. The reversal of 561514567 is 765415165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 561514567 - 2¹⁹ = 560990279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561514507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280757283 + 280757284.

It is an arithmetic number, because the mean of its divisors is an integer number (280757284).

Almost surely, 2^561514567 is an apocalyptic number.

561514567 is a deficient number, since it is larger than the sum of its proper divisors (1).

561514567 is an equidigital number, since it uses as much as digits as its factorization.

561514567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126000, while the sum is 40.

The square root of 561514567 is about 23696.2985928182. The cubic root of 561514567 is about 824.9994818485. Note that the first 3 decimals are identical.

The spelling of 561514567 in words is "five hundred sixty-one million, five hundred fourteen thousand, five hundred sixty-seven".