561224047 has 2 divisors, whose sum is σ = 561224048. Its totient is φ = 561224046.

The previous prime is 561224023. The next prime is 561224057. The reversal of 561224047 is 740422165.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561224047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561224057) 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, 280612023 + 280612024.

It is an arithmetic number, because the mean of its divisors is an integer number (280612024).

Almost surely, 2^561224047 is an apocalyptic number.

561224047 is a deficient number, since it is larger than the sum of its proper divisors (1).

561224047 is an equidigital number, since it uses as much as digits as its factorization.

561224047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 561224047 is about 23690.1677284058. The cubic root of 561224047 is about 824.8571761328.

The spelling of 561224047 in words is "five hundred sixty-one million, two hundred twenty-four thousand, forty-seven".