561514423 has 2 divisors, whose sum is σ = 561514424. Its totient is φ = 561514422.

The previous prime is 561514411. The next prime is 561514427. The reversal of 561514423 is 324415165.

It is a happy number.

561514423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561514423 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561514427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280757211 + 280757212.

It is an arithmetic number, because the mean of its divisors is an integer number (280757212).

Almost surely, 2^561514423 is an apocalyptic number.

561514423 is a deficient number, since it is larger than the sum of its proper divisors (1).

561514423 is an equidigital number, since it uses as much as digits as its factorization.

561514423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 31.

The square root of 561514423 is about 23696.2955543688. The cubic root of 561514423 is about 824.9994113250. Note that the first 3 decimals are identical.

Adding to 561514423 its reverse (324415165), we get a palindrome (885929588).

The spelling of 561514423 in words is "five hundred sixty-one million, five hundred fourteen thousand, four hundred twenty-three".