561710203 has 2 divisors, whose sum is σ = 561710204. Its totient is φ = 561710202.

The previous prime is 561710119. The next prime is 561710221. The reversal of 561710203 is 302017165.

561710203 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-561710203 is a prime.

It is not a weakly prime, because it can be changed into another prime (561710273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280855101 + 280855102.

It is an arithmetic number, because the mean of its divisors is an integer number (280855102).

Almost surely, 2^561710203 is an apocalyptic number.

561710203 is a deficient number, since it is larger than the sum of its proper divisors (1).

561710203 is an equidigital number, since it uses as much as digits as its factorization.

561710203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 561710203 is about 23700.4262197961. The cubic root of 561710203 is about 825.0952827813.

Adding to 561710203 its reverse (302017165), we get a palindrome (863727368).

The spelling of 561710203 in words is "five hundred sixty-one million, seven hundred ten thousand, two hundred three".