561203413 has 2 divisors, whose sum is σ = 561203414. Its totient is φ = 561203412.

The previous prime is 561203407. The next prime is 561203417. The reversal of 561203413 is 314302165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 538564849 + 22638564 = 23207^2 + 4758^2 .

It is a cyclic number.

It is not a de Polignac number, because 561203413 - 2²⁹ = 24332501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561203417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280601706 + 280601707.

It is an arithmetic number, because the mean of its divisors is an integer number (280601707).

Almost surely, 2^561203413 is an apocalyptic number.

It is an amenable number.

561203413 is a deficient number, since it is larger than the sum of its proper divisors (1).

561203413 is an equidigital number, since it uses as much as digits as its factorization.

561203413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 561203413 is about 23689.7322272752. The cubic root of 561203413 is about 824.8470670913.

Adding to 561203413 its reverse (314302165), we get a palindrome (875505578).

The spelling of 561203413 in words is "five hundred sixty-one million, two hundred three thousand, four hundred thirteen".