561424511 has 2 divisors, whose sum is σ = 561424512. Its totient is φ = 561424510.

The previous prime is 561424463. The next prime is 561424517. The reversal of 561424511 is 115424165.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561424511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561424517) 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, 280712255 + 280712256.

It is an arithmetic number, because the mean of its divisors is an integer number (280712256).

Almost surely, 2^561424511 is an apocalyptic number.

561424511 is a deficient number, since it is larger than the sum of its proper divisors (1).

561424511 is an equidigital number, since it uses as much as digits as its factorization.

561424511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 29.

The square root of 561424511 is about 23694.3983042406. The cubic root of 561424511 is about 824.9553748743.

Adding to 561424511 its reverse (115424165), we get a palindrome (676848676).

The spelling of 561424511 in words is "five hundred sixty-one million, four hundred twenty-four thousand, five hundred eleven".